Extracting prog: 5m29.048822805s
Minimizing prog: 1h56m56.808744348s
Simplifying prog options: 0s
Extracting C: 3m9.919904578s
Simplifying C: 24m4.924831888s


extracting reproducer from 45 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mmap-userfaultfd-ioctl$UFFDIO_API-ioctl$UFFDIO_REGISTER-mremap-ioctl$KVM_RUN
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0)
r10 = userfaultfd(0x80001)
ioctl$UFFDIO_API(r10, 0xc018aa3f, &(0x7f00000000c0))
ioctl$UFFDIO_REGISTER(r10, 0xc020aa00, &(0x7f0000000180)={{&(0x7f0000000000/0xc00000)=nil, 0xc00000}, 0x3})
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)
ioctl$KVM_RUN(r9, 0xae80, 0x0)

program crashed: INFO: task hung in userfaultfd_release_all
single: successfully extracted reproducer
found reproducer with 29 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mmap-userfaultfd-ioctl$UFFDIO_API-ioctl$UFFDIO_REGISTER-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0)
r10 = userfaultfd(0x80001)
ioctl$UFFDIO_API(r10, 0xc018aa3f, &(0x7f00000000c0))
ioctl$UFFDIO_REGISTER(r10, 0xc020aa00, &(0x7f0000000180)={{&(0x7f0000000000/0xc00000)=nil, 0xc00000}, 0x3})
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in userfaultfd_release_all
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mmap-userfaultfd-ioctl$UFFDIO_API-ioctl$UFFDIO_REGISTER
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0)
r10 = userfaultfd(0x80001)
ioctl$UFFDIO_API(r10, 0xc018aa3f, &(0x7f00000000c0))
ioctl$UFFDIO_REGISTER(r10, 0xc020aa00, &(0x7f0000000180)={{&(0x7f0000000000/0xc00000)=nil, 0xc00000}, 0x3})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mmap-userfaultfd-ioctl$UFFDIO_API-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0)
r10 = userfaultfd(0x80001)
ioctl$UFFDIO_API(r10, 0xc018aa3f, &(0x7f00000000c0))
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in userfaultfd_release_all
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mmap-userfaultfd-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0)
userfaultfd(0x80001)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in userfaultfd_release_all
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mmap-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0x3032, 0xffffffffffffffff, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-syz_kvm_setup_cpu$x86-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
syz_kvm_setup_cpu$x86(r6, r9, &(0x7f0000760000/0x18000)=nil, &(0x7f0000000200)=[@text16={0x10, &(0x7f0000000380)="f3f020ba0000653e0f01c90f001fd9fa0f01d7baf80c66b8b81a878f66efbafc0c66edbad004ed36670f01c30f7903b801000f00d0", 0x35}], 0x1, 0x30, 0x0, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r9 = ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r9, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
r8 = dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
ioctl$KVM_CREATE_VCPU(r8, 0xae41, 0x2)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_SET_USER_MEMORY_REGION-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
dup(r7)
ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-dup-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
r7 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
dup(r7)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-ioctl$KVM_CREATE_VM-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r5 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r5, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r6, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r6, 0x0)
syz_kvm_setup_cpu$x86(r1, r6, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-add_key$user-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r4 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r5, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r5, 0x0)
syz_kvm_setup_cpu$x86(r1, r5, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
add_key$user(&(0x7f0000000080), 0x0, 0x0, 0x0, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-syz_kvm_setup_cpu$x86-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r4 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r5, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r5, 0x0)
syz_kvm_setup_cpu$x86(r1, r5, &(0x7f0000000000/0x18000)=nil, &(0x7f00000001c0)=[@textreal={0x8, &(0x7f0000000480)="f08029900f76c96626660f639856250f01c866b95709000066b80040000066ba000000000f30baf80c66b8665ec58966efbafc0cec0f01c5ab0f0666b82b0000000f23c80f21f86635040040000f23f8", 0x50}], 0x1, 0x2b, &(0x7f0000000240)=[@cr0={0x0, 0x60000020}], 0x1)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mmap-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r4 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r5, 0xde34)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x9, 0x13, r5, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-ftruncate-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r4 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
ftruncate(r5, 0xde34)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-openat$cgroup_ro-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r4 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='blkio.bfq.group_wait_time\x00', 0x275a, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-sendmsg$kcm-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
r4 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000040)="d8000000180081034e81f783db4cb9040a1d020006007c09e8fc55a10a002a000400142603600e120800060000000441a8000800a4001040040000000c5c04613e60a2a6c30942519c6f749229c1d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a707f4090000001fb71b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db798262f3d40fad9e3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5dd330d4e1ffffffffc1c9b6278754ca397cc87566388b0dd6e4edef3d9300", 0xd8}], 0x1}, 0x4000)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-socket$kcm-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
socket$kcm(0x10, 0x2, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-openat$kvm-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x20042, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-keyctl$dh_compute-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
r0 = add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r2=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r1, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r2, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
r3 = add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
keyctl$dh_compute(0x17, &(0x7f0000000140)={r0, r3, r0}, &(0x7f00000000c0)=""/83, 0xfffffffffffffe4f, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-add_key$user-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r0 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r1=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r0, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r1, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
add_key$user(&(0x7f00000003c0), &(0x7f0000000440), &(0x7f00000000c0), 0xc9, 0xfffffffffffffffd)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-sendmsg$NFT_BATCH-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r0 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r1=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r0, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r1, 0x1, 0x1, 0x90}}, 0x20)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_SET_OPTION-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r0 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040)={<r1=>0xffffffffffffffff}, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_SET_OPTION(r0, &(0x7f0000000180)={0xe, 0x18, 0xfa00, @ib_path={&(0x7f00000002c0)=[{}, {0x2b}], r1, 0x1, 0x1, 0x90}}, 0x20)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
r0 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000080)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000040), 0x2}}, 0x20)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-openat$rdma_cm-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-add_key$user-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
add_key$user(&(0x7f00000002c0), &(0x7f0000000300)={'syz', 0x0}, &(0x7f0000000280)="d25a9850a9d7", 0x6, 0xfffffffffffffffe)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-sched_setscheduler-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x7)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
detailed listing:
executing program 0:
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, 0x0)
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140))
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_clone-mremap
detailed listing:
executing program 0:
syz_clone(0x2211000, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)="d8b07da8a079e98f7663074742d57c4d12f7")
mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
reproducing took 2h39m24.509589236s
repro crashed as (corrupted=false):
INFO: task syz.0.16:6021 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc6-next-20250718-syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.16        state:D stack:26920 pid:6021  tgid:6021  ppid:5974   task_flags:0x40004c flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5351 [inline]
 __schedule+0x1737/0x4d30 kernel/sched/core.c:6954
 __schedule_loop kernel/sched/core.c:7036 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7051
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108
 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088
 __down_read_common kernel/locking/rwsem.c:1263 [inline]
 __down_read kernel/locking/rwsem.c:1276 [inline]
 down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541
 mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 exit_mm+0xcc/0x2c0 kernel/exit.c:557
 do_exit+0x648/0x2300 kernel/exit.c:947
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
 __do_sys_exit_group kernel/exit.c:1111 [inline]
 __se_sys_exit_group kernel/exit.c:1109 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f69f4d8e9a9
RSP: 002b:00007ffda8f9b5e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f69f4d8e9a9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00000002a8f9b6df R09: 00007f69f4f80260
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f69f4f80260 R14: 0000000000000003 R15: 00007ffda8f9b6a0
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
 #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline]
 #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3319
 #1: ffffc90000117bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline]
 #1: ffffc90000117bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3319
 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:303
1 lock held by khungtaskd/31:
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770
3 locks held by kworker/u8:2/36:
 #0: ffff88802f909948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline]
 #0: ffff88802f909948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3319
 #1: ffffc90000ac7bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline]
 #1: ffffc90000ac7bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3319
 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4729
2 locks held by getty/5609:
 #0: ffff8880304d90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222
1 lock held by syz.0.16/6021:
 #0: ffff88807bbbace0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807bbbace0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.0.16/6022:
1 lock held by syz.1.17/6044:
 #0: ffff88807bbbd7e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807bbbd7e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.1.17/6045:
1 lock held by syz.2.18/6074:
 #0: ffff88804d9cb7a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88804d9cb7a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.2.18/6075:
1 lock held by syz.3.19/6097:
 #0: ffff888011ac62a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888011ac62a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
3 locks held by syz.3.19/6098:
1 lock held by syz.4.20/6128:
 #0: ffff888011ac2220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888011ac2220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.4.20/6129:
1 lock held by syz.5.21/6165:
 #0: ffff88804d9ccd20 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88804d9ccd20 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.5.21/6166:
1 lock held by syz.6.22/6196:
 #0: ffff88807bbbc260 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807bbbc260 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
3 locks held by syz.6.22/6197:
3 locks held by syz-executor/6200:
 #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570
 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4056
 #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline]
 #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730 kernel/rcu/tree_exp.h:967

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf93/0xfe0 kernel/hung_task.c:491
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6098 Comm: syz.3.19 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:debug_lockdep_rcu_enabled+0x16/0x40 kernel/rcu/update.c:320
Code: cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 17 54 64 04 00 74 1e 83 3d 3a 84 64 04 00 <74> 15 65 48 8b 0c 25 08 50 e7 92 31 c0 83 b9 ec 0a 00 00 00 0f 94
RSP: 0018:ffffc90002f37108 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 00007f936958e9a9 RCX: fcfc1000479a4b00
RDX: 0000000000000000 RSI: ffffffff8de5b067 RDI: ffffffff8c04d400
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff81cf0ad6
R10: ffffc90002f371f8 R11: ffffffff81ac9660 R12: ffff88802a7e5a00
R13: ffff88802881cc00 R14: 00007f936958e9a9 R15: 1ffff920005e6e3e
FS:  00007f936a4e06c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563338ca5628 CR3: 000000007a31c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rcu_read_lock include/linux/rcupdate.h:842 [inline]
 is_bpf_text_address+0x50/0x2b0 kernel/bpf/core.c:776
 kernel_text_address+0xa5/0xe0 kernel/extable.c:125
 __kernel_text_address+0xd/0x40 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4180 [inline]
 slab_alloc_node mm/slub.c:4229 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
 mt_alloc_one lib/maple_tree.c:176 [inline]
 mas_alloc_nodes+0x2e9/0x8e0 lib/maple_tree.c:1255
 mas_node_count_gfp lib/maple_tree.c:1337 [inline]
 mas_node_count lib/maple_tree.c:1351 [inline]
 mas_wr_preallocate lib/maple_tree.c:4292 [inline]
 mas_store_gfp+0x46c/0x860 lib/maple_tree.c:5467
 vma_iter_clear_gfp include/linux/mm.h:883 [inline]
 do_vmi_align_munmap+0x2a7/0x420 mm/vma.c:1531
 do_vmi_munmap+0x253/0x2e0 mm/vma.c:1584
 do_munmap+0xe1/0x140 mm/mmap.c:1068
 mremap_to+0x2df/0x7a0 mm/mremap.c:1368
 remap_move mm/mremap.c:1863 [inline]
 do_mremap mm/mremap.c:1906 [inline]
 __do_sys_mremap mm/mremap.c:1970 [inline]
 __se_sys_mremap+0xa0b/0xef0 mm/mremap.c:1938
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f936958e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f936a4e0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007f93697b5fa0 RCX: 00007f936958e9a9
RDX: 0000000000600002 RSI: 0000000000600002 RDI: 0000200000000000
RBP: 00007f9369610d69 R08: 0000200000a00000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f93697b5fa0 R15: 00007ffdf85f0eb8
 </TASK>

final repro crashed as (corrupted=false):
INFO: task syz.0.16:6021 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc6-next-20250718-syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.16        state:D stack:26920 pid:6021  tgid:6021  ppid:5974   task_flags:0x40004c flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5351 [inline]
 __schedule+0x1737/0x4d30 kernel/sched/core.c:6954
 __schedule_loop kernel/sched/core.c:7036 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7051
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108
 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088
 __down_read_common kernel/locking/rwsem.c:1263 [inline]
 __down_read kernel/locking/rwsem.c:1276 [inline]
 down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541
 mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 exit_mm+0xcc/0x2c0 kernel/exit.c:557
 do_exit+0x648/0x2300 kernel/exit.c:947
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
 __do_sys_exit_group kernel/exit.c:1111 [inline]
 __se_sys_exit_group kernel/exit.c:1109 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f69f4d8e9a9
RSP: 002b:00007ffda8f9b5e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f69f4d8e9a9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00000002a8f9b6df R09: 00007f69f4f80260
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f69f4f80260 R14: 0000000000000003 R15: 00007ffda8f9b6a0
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
 #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline]
 #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3319
 #1: ffffc90000117bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline]
 #1: ffffc90000117bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3319
 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:303
1 lock held by khungtaskd/31:
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770
3 locks held by kworker/u8:2/36:
 #0: ffff88802f909948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline]
 #0: ffff88802f909948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3319
 #1: ffffc90000ac7bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline]
 #1: ffffc90000ac7bc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3319
 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4729
2 locks held by getty/5609:
 #0: ffff8880304d90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222
1 lock held by syz.0.16/6021:
 #0: ffff88807bbbace0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807bbbace0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.0.16/6022:
1 lock held by syz.1.17/6044:
 #0: ffff88807bbbd7e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807bbbd7e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.1.17/6045:
1 lock held by syz.2.18/6074:
 #0: ffff88804d9cb7a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88804d9cb7a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.2.18/6075:
1 lock held by syz.3.19/6097:
 #0: ffff888011ac62a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888011ac62a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
3 locks held by syz.3.19/6098:
1 lock held by syz.4.20/6128:
 #0: ffff888011ac2220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888011ac2220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.4.20/6129:
1 lock held by syz.5.21/6165:
 #0: ffff88804d9ccd20 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88804d9ccd20 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.5.21/6166:
1 lock held by syz.6.22/6196:
 #0: ffff88807bbbc260 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807bbbc260 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
3 locks held by syz.6.22/6197:
3 locks held by syz-executor/6200:
 #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570
 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4056
 #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline]
 #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730 kernel/rcu/tree_exp.h:967

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf93/0xfe0 kernel/hung_task.c:491
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6098 Comm: syz.3.19 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:debug_lockdep_rcu_enabled+0x16/0x40 kernel/rcu/update.c:320
Code: cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 17 54 64 04 00 74 1e 83 3d 3a 84 64 04 00 <74> 15 65 48 8b 0c 25 08 50 e7 92 31 c0 83 b9 ec 0a 00 00 00 0f 94
RSP: 0018:ffffc90002f37108 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 00007f936958e9a9 RCX: fcfc1000479a4b00
RDX: 0000000000000000 RSI: ffffffff8de5b067 RDI: ffffffff8c04d400
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff81cf0ad6
R10: ffffc90002f371f8 R11: ffffffff81ac9660 R12: ffff88802a7e5a00
R13: ffff88802881cc00 R14: 00007f936958e9a9 R15: 1ffff920005e6e3e
FS:  00007f936a4e06c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563338ca5628 CR3: 000000007a31c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rcu_read_lock include/linux/rcupdate.h:842 [inline]
 is_bpf_text_address+0x50/0x2b0 kernel/bpf/core.c:776
 kernel_text_address+0xa5/0xe0 kernel/extable.c:125
 __kernel_text_address+0xd/0x40 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4180 [inline]
 slab_alloc_node mm/slub.c:4229 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4236
 mt_alloc_one lib/maple_tree.c:176 [inline]
 mas_alloc_nodes+0x2e9/0x8e0 lib/maple_tree.c:1255
 mas_node_count_gfp lib/maple_tree.c:1337 [inline]
 mas_node_count lib/maple_tree.c:1351 [inline]
 mas_wr_preallocate lib/maple_tree.c:4292 [inline]
 mas_store_gfp+0x46c/0x860 lib/maple_tree.c:5467
 vma_iter_clear_gfp include/linux/mm.h:883 [inline]
 do_vmi_align_munmap+0x2a7/0x420 mm/vma.c:1531
 do_vmi_munmap+0x253/0x2e0 mm/vma.c:1584
 do_munmap+0xe1/0x140 mm/mmap.c:1068
 mremap_to+0x2df/0x7a0 mm/mremap.c:1368
 remap_move mm/mremap.c:1863 [inline]
 do_mremap mm/mremap.c:1906 [inline]
 __do_sys_mremap mm/mremap.c:1970 [inline]
 __se_sys_mremap+0xa0b/0xef0 mm/mremap.c:1938
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f936958e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f936a4e0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007f93697b5fa0 RCX: 00007f936958e9a9
RDX: 0000000000600002 RSI: 0000000000600002 RDI: 0000200000000000
RBP: 00007f9369610d69 R08: 0000200000a00000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f93697b5fa0 R15: 00007ffdf85f0eb8
 </TASK>