Extracting prog: 7m20.442227848s
Minimizing prog: 2h8m48.172552283s
Simplifying prog options: 18m48.287674283s
Extracting C: 5m12.653071224s
Simplifying C: 0s


extracting reproducer from 25 programs
testing a last program of every proc
single: executing 5 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-syz_genetlink_get_family_id$auto_seg6-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
r3 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r3, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x2, 0x401, 0x1000, 0x8000000000000011, r0, 0x5)
syz_genetlink_get_family_id$auto_seg6(&(0x7f0000000280), 0xffffffffffffffff)
r4 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r4, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
single: successfully extracted reproducer
found reproducer with 19 syscalls
minimizing guilty program
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-syz_genetlink_get_family_id$auto_seg6-openat$auto_nsim_dev_health_break_fops_health
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
r3 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r3, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x2, 0x401, 0x1000, 0x8000000000000011, r0, 0x5)
syz_genetlink_get_family_id$auto_seg6(&(0x7f0000000280), 0xffffffffffffffff)
openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)

program did not crash
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-syz_genetlink_get_family_id$auto_seg6-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
r3 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r3, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x2, 0x401, 0x1000, 0x8000000000000011, r0, 0x5)
syz_genetlink_get_family_id$auto_seg6(&(0x7f0000000280), 0xffffffffffffffff)
write$auto(0xffffffffffffffff, 0x0, 0x1ff)

program did not crash
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
r3 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r3, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x2, 0x401, 0x1000, 0x8000000000000011, r0, 0x5)
r4 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r4, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
r3 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r3, &(0x7f0000000200)={0x0, 0x7}, 0x3)
r4 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r4, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_proc_fail_nth_operations_base-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
r3 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r3, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-faccessat$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
faccessat$auto(r2, 0x0, 0x2)
r3 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r3, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$dir-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
openat$dir(0xffffffffffffff9c, 0x0, 0x2d2802, 0x48)
r2 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r2, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-read$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
read$auto(r1, 0x0, 0x20)
r2 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r2, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-faccessat2$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
faccessat2$auto(0xffffffffffffffff, 0x0, 0x0, 0x7)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r1, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_kernfs_file_fops_kernfs_internal-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000080)='/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:08/adr\x00', 0x0, 0x0)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r1, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_mon_fops_binary_mon_bin-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
openat$auto_mon_fops_binary_mon_bin(0xffffffffffffff9c, 0x0, 0x4821c0, 0x0)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r1, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-write$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
write$auto(r0, &(0x7f0000000300)='.o\xd3\xa49\xaf\xa9\xe4\xe17\x12\xb3Z\x17I\x82\xdc\xbeiw\xc1\xd1\x8d\x9b\r\x9aR\xe7\x9f\xd8\xab\x16`f\nT\xaa\xfap \xe6\xdaV\xdeD\x8dR5\xd2\xe58\n\xff\x19+\xeb\xb3+\xf6\xc6\a\x00\x00\x00\xf1A\xa5\x95\x1fk\x1f\xff\x99gP\x9e\x88\x97]\x93\xf4\xdd<\xe7p\x0e\xd4C\xdc\x84\v\xafz\xfd\x81\xa3\xb2\xbb\xa4\xd9\xf2P\xa8\xe9\x8f\x13\xa7\x98\x85\xf8\v\aB\xfc\xfa\x14E\xb8y\x884<\xa7\xffyb\x8a\b\xbb\x1b\x13W\xe3\xf7\xd8\x83\xc9\xd7\x8c', 0x6)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r1, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_proc_reg_file_ops_compat_inode-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
openat$auto_proc_reg_file_ops_compat_inode(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self/net/afs/rootcell\x00', 0x1cb842, 0x0)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-readv$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
readv$auto(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x7}, 0x8)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-execve$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
execve$auto(&(0x7f0000000000)=':,\x00', 0x0, 0x0)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program did not crash
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-lseek$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
lseek$auto(0x3, 0x7ffffffffffffffd, 0x2)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program did not crash
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, 0x0, 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program did not crash
extracting C reproducer
testing compiled C program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
extracting C reproducer
testing compiled C program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=8m11.015964336s, {Threaded:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program did not crash
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
validation run: crashed=true
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
validation run: crashed=true
testing program (duration=8m11.015964336s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mmap$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x240009, 0xdf, 0x9b72, 0x7, 0x28000)
mmap$auto(0xa, 0x40009, 0xdf, 0x9b72, 0x7, 0x28000)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1ff)

program crashed: INFO: task hung in remove_one
validation run: crashed=true
reproducing took 2h59m48.13232221s
repro crashed as (corrupted=false):
INFO: task kworker/u8:1:13 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:24120 pid:13    tgid:13    ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_timeout+0x257/0x290 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common+0x2fc/0x4e0 kernel/sched/completion.c:121
 __debugfs_file_removed fs/debugfs/inode.c:760 [inline]
 remove_one+0x312/0x420 fs/debugfs/inode.c:767
 __simple_recursive_removal+0x158/0x610 fs/libfs.c:631
 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:790
 nsim_dev_health_exit+0x3b/0xe0 drivers/net/netdevsim/health.c:227
 nsim_dev_reload_destroy+0x144/0x4d0 drivers/net/netdevsim/dev.c:1710
 nsim_dev_reload_down+0x6e/0xd0 drivers/net/netdevsim/dev.c:983
 devlink_reload+0x19e/0x7c0 net/devlink/dev.c:461
 devlink_pernet_pre_exit+0x1a0/0x2b0 net/devlink/core.c:509
 ops_pre_exit_list net/core/net_namespace.c:160 [inline]
 ops_undo_list+0x184/0xab0 net/core/net_namespace.c:233
 cleanup_net+0x408/0x890 net/core/net_namespace.c:682
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz-executor:8552 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:24440 pid:8552  tgid:8552  ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x82a/0x10b0 kernel/locking/mutex.c:760
 device_lock include/linux/device.h:911 [inline]
 device_del+0xa0/0x9f0 drivers/base/core.c:3840
 device_unregister+0x1d/0xc0 drivers/base/core.c:3919
 nsim_bus_dev_del drivers/net/netdevsim/bus.c:483 [inline]
 del_device_store+0x355/0x4a0 drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x71/0xb0 drivers/base/bus.c:172
 sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d0/0x11d0 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f022ed8d69f
RSP: 002b:00007ffd0e117d90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f022ed8d69f
RDX: 0000000000000001 RSI: 00007ffd0e117de0 RDI: 0000000000000005
RBP: 00007f022ee130c1 R08: 0000000000000000 R09: 00007ffd0e117be7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffd0e117de0 R14: 00007f022fae4620 R15: 0000000000000003
 </TASK>
INFO: task syz.3.2403:8562 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2403      state:D stack:27368 pid:8562  tgid:8562  ppid:6012   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x82a/0x10b0 kernel/locking/mutex.c:760
 devlink_health_report+0x3ba/0x9c0 net/devlink/health.c:627
 nsim_dev_health_break_write+0x166/0x210 drivers/net/netdevsim/health.c:162
 full_proxy_write+0x12e/0x1a0 fs/debugfs/file.c:388
 vfs_write+0x29d/0x11d0 fs/read_write.c:684
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa500b8ebe9
RSP: 002b:00007ffe40adba78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa500db5fa0 RCX: 00007fa500b8ebe9
RDX: 00000000000001ff RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fa500c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa500db5fa0 R14: 00007fa500db5fa0 R15: 0000000000000003
 </TASK>
INFO: task syz.1.2418:8579 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2418      state:D stack:27320 pid:8579  tgid:8579  ppid:6005   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 rwsem_down_read_slowpath+0x64e/0xbf0 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1261 [inline]
 __down_read kernel/locking/rwsem.c:1274 [inline]
 down_read+0xef/0x480 kernel/locking/rwsem.c:1539
 inode_lock_shared include/linux/fs.h:884 [inline]
 open_last_lookups fs/namei.c:3806 [inline]
 path_openat+0x818/0x2cb0 fs/namei.c:4043
 do_filp_open+0x20b/0x470 fs/namei.c:4073
 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x174/0x210 fs/open.c:1461
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff702b8ebe9
RSP: 002b:00007ffff11678e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ff702db5fa0 RCX: 00007ff702b8ebe9
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007ff702c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff702db5fa0 R14: 00007ff702db5fa0 R15: 0000000000000004
 </TASK>
INFO: task syz.0.2419:8581 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2419      state:D stack:28168 pid:8581  tgid:8581  ppid:6006   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 rwsem_down_read_slowpath+0x64e/0xbf0 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1261 [inline]
 __down_read kernel/locking/rwsem.c:1274 [inline]
 down_read+0xef/0x480 kernel/locking/rwsem.c:1539
 inode_lock_shared include/linux/fs.h:884 [inline]
 open_last_lookups fs/namei.c:3806 [inline]
 path_openat+0x818/0x2cb0 fs/namei.c:4043
 do_filp_open+0x20b/0x470 fs/namei.c:4073
 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x174/0x210 fs/open.c:1461
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff85698ebe9
RSP: 002b:00007ffd91261178 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ff856bb5fa0 RCX: 00007ff85698ebe9
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007ff856a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff856bb5fa0 R14: 00007ff856bb5fa0 R15: 0000000000000004
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/u8:1/13:
 #0: ffff88801c6fe948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
 #1: ffffc90000127d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
 #2: ffffffff9036f2f0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xad/0x890 net/core/net_namespace.c:658
 #3: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:911 [inline]
 #3: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
 #3: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x12c/0x2b0 net/devlink/core.c:506
 #4: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline]
 #4: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
 #4: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x136/0x2b0 net/devlink/core.c:506
 #5: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3/2){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:914 [inline]
 #5: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3/2){+.+.}-{4:4}, at: __simple_recursive_removal+0x354/0x610 fs/libfs.c:627
1 lock held by khungtaskd/31:
 #0: ffffffff8e5c0fe0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e5c0fe0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8e5c0fe0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6775
2 locks held by getty/5629:
 #0: ffff88814d2e70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900036bb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
5 locks held by syz-executor/8552:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff8880796e4c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
 #4: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:911 [inline]
 #4: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: device_del+0xa0/0x9f0 drivers/base/core.c:3840
2 locks held by syz.3.2403/8562:
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devlink_health_report+0x3ba/0x9c0 net/devlink/health.c:627
2 locks held by syz.1.2418/8579:
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3796 [inline]
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x1ec8/0x2cb0 fs/namei.c:4043
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:884 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3806 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: path_openat+0x818/0x2cb0 fs/namei.c:4043
2 locks held by syz.0.2419/8581:
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3796 [inline]
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x1ec8/0x2cb0 fs/namei.c:4043
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:884 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3806 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: path_openat+0x818/0x2cb0 fs/namei.c:4043
4 locks held by syz-executor/8598:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88803338d088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8599:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888061204488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8601:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888061347488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8624:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805d8e3c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8642:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88806099e488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8645:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805fe28488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8646:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888027944088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8670:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888069e49888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8687:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805fc6d088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8690:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805fedd888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8695:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88807689a088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/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+0xf0e/0x1260 kernel/hung_task.c:491
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: 5c 65 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d c3 d1 19 00 fb f4 <e9> 3c 0d 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffc90000197df8 EFLAGS: 000002c6
RAX: 000000000013f941 RBX: 0000000000000001 RCX: ffffffff8b903bf9
RDX: 0000000000000000 RSI: ffffffff8de4b9c6 RDI: ffffffff8c162900
RBP: ffffed1003c57b40 R08: 0000000000000001 R09: ffffed10170a6655
R10: ffff8880b85332ab R11: 0000000000000000 R12: 0000000000000001
R13: ffff88801e2bda00 R14: ffffffff90ab6b90 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881247c6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559c305a4a58 CR3: 000000000e380000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:757
 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x391/0x510 kernel/sched/idle.c:330
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
 start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x148
 </TASK>

final repro crashed as (corrupted=false):
INFO: task kworker/u8:1:13 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:24120 pid:13    tgid:13    ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_timeout+0x257/0x290 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common+0x2fc/0x4e0 kernel/sched/completion.c:121
 __debugfs_file_removed fs/debugfs/inode.c:760 [inline]
 remove_one+0x312/0x420 fs/debugfs/inode.c:767
 __simple_recursive_removal+0x158/0x610 fs/libfs.c:631
 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:790
 nsim_dev_health_exit+0x3b/0xe0 drivers/net/netdevsim/health.c:227
 nsim_dev_reload_destroy+0x144/0x4d0 drivers/net/netdevsim/dev.c:1710
 nsim_dev_reload_down+0x6e/0xd0 drivers/net/netdevsim/dev.c:983
 devlink_reload+0x19e/0x7c0 net/devlink/dev.c:461
 devlink_pernet_pre_exit+0x1a0/0x2b0 net/devlink/core.c:509
 ops_pre_exit_list net/core/net_namespace.c:160 [inline]
 ops_undo_list+0x184/0xab0 net/core/net_namespace.c:233
 cleanup_net+0x408/0x890 net/core/net_namespace.c:682
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz-executor:8552 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:24440 pid:8552  tgid:8552  ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x82a/0x10b0 kernel/locking/mutex.c:760
 device_lock include/linux/device.h:911 [inline]
 device_del+0xa0/0x9f0 drivers/base/core.c:3840
 device_unregister+0x1d/0xc0 drivers/base/core.c:3919
 nsim_bus_dev_del drivers/net/netdevsim/bus.c:483 [inline]
 del_device_store+0x355/0x4a0 drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x71/0xb0 drivers/base/bus.c:172
 sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x7d0/0x11d0 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f022ed8d69f
RSP: 002b:00007ffd0e117d90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f022ed8d69f
RDX: 0000000000000001 RSI: 00007ffd0e117de0 RDI: 0000000000000005
RBP: 00007f022ee130c1 R08: 0000000000000000 R09: 00007ffd0e117be7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffd0e117de0 R14: 00007f022fae4620 R15: 0000000000000003
 </TASK>
INFO: task syz.3.2403:8562 blocked for more than 143 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2403      state:D stack:27368 pid:8562  tgid:8562  ppid:6012   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x82a/0x10b0 kernel/locking/mutex.c:760
 devlink_health_report+0x3ba/0x9c0 net/devlink/health.c:627
 nsim_dev_health_break_write+0x166/0x210 drivers/net/netdevsim/health.c:162
 full_proxy_write+0x12e/0x1a0 fs/debugfs/file.c:388
 vfs_write+0x29d/0x11d0 fs/read_write.c:684
 ksys_write+0x12a/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa500b8ebe9
RSP: 002b:00007ffe40adba78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa500db5fa0 RCX: 00007fa500b8ebe9
RDX: 00000000000001ff RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fa500c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa500db5fa0 R14: 00007fa500db5fa0 R15: 0000000000000003
 </TASK>
INFO: task syz.1.2418:8579 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2418      state:D stack:27320 pid:8579  tgid:8579  ppid:6005   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 rwsem_down_read_slowpath+0x64e/0xbf0 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1261 [inline]
 __down_read kernel/locking/rwsem.c:1274 [inline]
 down_read+0xef/0x480 kernel/locking/rwsem.c:1539
 inode_lock_shared include/linux/fs.h:884 [inline]
 open_last_lookups fs/namei.c:3806 [inline]
 path_openat+0x818/0x2cb0 fs/namei.c:4043
 do_filp_open+0x20b/0x470 fs/namei.c:4073
 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x174/0x210 fs/open.c:1461
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff702b8ebe9
RSP: 002b:00007ffff11678e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ff702db5fa0 RCX: 00007ff702b8ebe9
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007ff702c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff702db5fa0 R14: 00007ff702db5fa0 R15: 0000000000000004
 </TASK>
INFO: task syz.0.2419:8581 blocked for more than 144 seconds.
      Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2419      state:D stack:28168 pid:8581  tgid:8581  ppid:6006   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 rwsem_down_read_slowpath+0x64e/0xbf0 kernel/locking/rwsem.c:1086
 __down_read_common kernel/locking/rwsem.c:1261 [inline]
 __down_read kernel/locking/rwsem.c:1274 [inline]
 down_read+0xef/0x480 kernel/locking/rwsem.c:1539
 inode_lock_shared include/linux/fs.h:884 [inline]
 open_last_lookups fs/namei.c:3806 [inline]
 path_openat+0x818/0x2cb0 fs/namei.c:4043
 do_filp_open+0x20b/0x470 fs/namei.c:4073
 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x174/0x210 fs/open.c:1461
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff85698ebe9
RSP: 002b:00007ffd91261178 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ff856bb5fa0 RCX: 00007ff85698ebe9
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007ff856a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff856bb5fa0 R14: 00007ff856bb5fa0 R15: 0000000000000004
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/u8:1/13:
 #0: ffff88801c6fe948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3211
 #1: ffffc90000127d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3212
 #2: ffffffff9036f2f0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xad/0x890 net/core/net_namespace.c:658
 #3: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:911 [inline]
 #3: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
 #3: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x12c/0x2b0 net/devlink/core.c:506
 #4: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline]
 #4: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
 #4: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x136/0x2b0 net/devlink/core.c:506
 #5: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3/2){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:914 [inline]
 #5: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3/2){+.+.}-{4:4}, at: __simple_recursive_removal+0x354/0x610 fs/libfs.c:627
1 lock held by khungtaskd/31:
 #0: ffffffff8e5c0fe0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e5c0fe0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8e5c0fe0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6775
2 locks held by getty/5629:
 #0: ffff88814d2e70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900036bb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
5 locks held by syz-executor/8552:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff8880796e4c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
 #4: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:911 [inline]
 #4: ffff88802a1750e8 (&dev->mutex){....}-{4:4}, at: device_del+0xa0/0x9f0 drivers/base/core.c:3840
2 locks held by syz.3.2403/8562:
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88802a176250 (&devlink->lock_key#2){+.+.}-{4:4}, at: devlink_health_report+0x3ba/0x9c0 net/devlink/health.c:627
2 locks held by syz.1.2418/8579:
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3796 [inline]
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x1ec8/0x2cb0 fs/namei.c:4043
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:884 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3806 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: path_openat+0x818/0x2cb0 fs/namei.c:4043
2 locks held by syz.0.2419/8581:
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3796 [inline]
 #0: ffff88801f688428 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x1ec8/0x2cb0 fs/namei.c:4043
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:884 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3806 [inline]
 #1: ffff88805d6d8660 (&sb->s_type->i_mutex_key#3){++++}-{4:4}, at: path_openat+0x818/0x2cb0 fs/namei.c:4043
4 locks held by syz-executor/8598:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88803338d088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8599:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888061204488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8601:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888061347488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8624:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805d8e3c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8642:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88806099e488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8645:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805fe28488 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8646:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888027944088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8670:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff888069e49888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8687:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805fc6d088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8690:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88805fedd888 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/8695:
 #0: ffff88807d37e428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:738
 #1: ffff88807689a088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325
 #2: ffff888027c5ae18 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326
 #3: ffffffff8f8f5a48 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x4a0 drivers/net/netdevsim/bus.c:234

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/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+0xf0e/0x1260 kernel/hung_task.c:491
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.16.0-syzkaller-12250-gc30a13538d9f #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: 5c 65 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d c3 d1 19 00 fb f4 <e9> 3c 0d 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffc90000197df8 EFLAGS: 000002c6
RAX: 000000000013f941 RBX: 0000000000000001 RCX: ffffffff8b903bf9
RDX: 0000000000000000 RSI: ffffffff8de4b9c6 RDI: ffffffff8c162900
RBP: ffffed1003c57b40 R08: 0000000000000001 R09: ffffed10170a6655
R10: ffff8880b85332ab R11: 0000000000000000 R12: 0000000000000001
R13: ffff88801e2bda00 R14: ffffffff90ab6b90 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881247c6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559c305a4a58 CR3: 000000000e380000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:757
 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x391/0x510 kernel/sched/idle.c:330
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
 start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x148
 </TASK>