Extracting prog: 37.379088075s
Minimizing prog: 5m45.015502373s
Simplifying prog options: 0s
Extracting C: 1m55.703047284s
Simplifying C: 10m16.725809511s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program crashed: WARNING in vma_mark_detached
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=46.020336435s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-shmget$private
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)

program did not crash
testing program (duration=46.020336435s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
shmat(0x0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program did not crash
testing program (duration=46.020336435s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): shmget$private-shmat
detailed listing:
executing program 0:
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program did not crash
testing program (duration=46.020336435s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b)

program did not crash
extracting C reproducer
testing compiled C program (duration=46.020336435s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
simplifying C reproducer
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program did not crash
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing compiled C program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
program crashed: WARNING in vma_mark_detached
testing program (duration=46.020336435s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program did not crash
validation run: crashed=false
testing program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program did not crash
validation run: crashed=false
testing program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program did not crash
validation run: crashed=false
testing program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program crashed: WARNING in vma_mark_detached
validation run: crashed=true
testing program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program did not crash
validation run: crashed=false
testing program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program crashed: WARNING in vma_mark_detached
validation run: crashed=true
testing program (duration=46.020336435s, {Threaded:false Repeat:false 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-shmget$private-shmat
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000)
r0 = shmget$private(0x0, 0x800000, 0x54003f00, &(0x7f0000800000/0x800000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0xbbdccba4532b703b) (fail_nth: 9)

program crashed: WARNING in vma_mark_detached
validation run: crashed=true
reproducing took 30m1.763818737s
repro crashed as (corrupted=false):
RBP: 00007fffeed81760 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f18d8615fac R14: 00007f18d8615fa0 R15: 00007f18d8615fa0
 </TASK>
HugeTLB: unable to allocate vma specific lock
------------[ cut here ]------------
!vma_is_attached(vma)
WARNING: ./include/linux/mmap_lock.h:435 at vma_assert_attached include/linux/mmap_lock.h:435 [inline], CPU#0: syz.0.17/6013
WARNING: ./include/linux/mmap_lock.h:435 at vma_mark_detached+0x198/0x260 include/linux/mmap_lock.h:455, CPU#0: syz.0.17/6013
Modules linked in:
CPU: 0 UID: 0 PID: 6013 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:vma_assert_attached include/linux/mmap_lock.h:435 [inline]
RIP: 0010:vma_mark_detached+0x198/0x260 include/linux/mmap_lock.h:455
Code: 01 00 00 00 89 ee e8 57 5f a4 ff 85 ed 7e 4b e8 0e 5b a4 ff 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 7e db f3 ff e8 f9 5a a4 ff 90 <0f> 0b 90 eb 95 e8 ee 5a a4 ff 90 0f 0b 90 e9 04 ff ff ff e8 e0 5a
RSP: 0018:ffffc900032d6df0 EFLAGS: 00010293
RAX: ffffffff8220ba17 RBX: ffff888074d82500 RCX: ffff88802e328000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888074d82583 R09: 1ffff1100e9b04b0
R10: dffffc0000000000 R11: ffffed100e9b04b1 R12: dffffc0000000000
R13: ffffc900032d7130 R14: ffff888074d82580 R15: 0000000000000001
FS:  0000555570ba6500(0000) GS:ffff88812522b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fa2c0e7138 CR3: 000000007d1d8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vms_gather_munmap_vmas+0x6ab/0x1380 mm/vma.c:1458
 do_vmi_align_munmap+0x2b4/0x4b0 mm/vma.c:1595
 do_vmi_munmap+0x252/0x2d0 mm/vma.c:1652
 do_munmap+0xf9/0x170 mm/mmap.c:1067
 mmap_action_finish mm/util.c:1422 [inline]
 mmap_action_complete+0x480/0x590 mm/util.c:1491
 compat_vma_mmap+0x243/0x2c0 mm/util.c:1280
 vfs_mmap include/linux/fs.h:2072 [inline]
 shm_mmap+0xda/0x200 ipc/shm.c:607
 vfs_mmap include/linux/fs.h:2074 [inline]
 mmap_file mm/internal.h:168 [inline]
 __mmap_new_file_vma mm/vma.c:2496 [inline]
 __mmap_new_vma mm/vma.c:2562 [inline]
 __mmap_region mm/vma.c:2771 [inline]
 mmap_region+0x1ab2/0x2280 mm/vma.c:2856
 do_mmap+0xc39/0x10c0 mm/mmap.c:560
 do_shmat+0x8d8/0xc10 ipc/shm.c:1662
 __do_sys_shmat ipc/shm.c:1698 [inline]
 __se_sys_shmat ipc/shm.c:1693 [inline]
 __x64_sys_shmat+0x9c/0xf0 ipc/shm.c:1693
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f18d839c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffeed816f8 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
RAX: ffffffffffffffda RBX: 00007f18d8615fa0 RCX: 00007f18d839c819
RDX: bbdccba4532b703b RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fffeed81760 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f18d8615fac R14: 00007f18d8615fa0 R15: 00007f18d8615fa0
 </TASK>

final repro crashed as (corrupted=false):
RBP: 00007fffeed81760 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f18d8615fac R14: 00007f18d8615fa0 R15: 00007f18d8615fa0
 </TASK>
HugeTLB: unable to allocate vma specific lock
------------[ cut here ]------------
!vma_is_attached(vma)
WARNING: ./include/linux/mmap_lock.h:435 at vma_assert_attached include/linux/mmap_lock.h:435 [inline], CPU#0: syz.0.17/6013
WARNING: ./include/linux/mmap_lock.h:435 at vma_mark_detached+0x198/0x260 include/linux/mmap_lock.h:455, CPU#0: syz.0.17/6013
Modules linked in:
CPU: 0 UID: 0 PID: 6013 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:vma_assert_attached include/linux/mmap_lock.h:435 [inline]
RIP: 0010:vma_mark_detached+0x198/0x260 include/linux/mmap_lock.h:455
Code: 01 00 00 00 89 ee e8 57 5f a4 ff 85 ed 7e 4b e8 0e 5b a4 ff 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 7e db f3 ff e8 f9 5a a4 ff 90 <0f> 0b 90 eb 95 e8 ee 5a a4 ff 90 0f 0b 90 e9 04 ff ff ff e8 e0 5a
RSP: 0018:ffffc900032d6df0 EFLAGS: 00010293
RAX: ffffffff8220ba17 RBX: ffff888074d82500 RCX: ffff88802e328000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888074d82583 R09: 1ffff1100e9b04b0
R10: dffffc0000000000 R11: ffffed100e9b04b1 R12: dffffc0000000000
R13: ffffc900032d7130 R14: ffff888074d82580 R15: 0000000000000001
FS:  0000555570ba6500(0000) GS:ffff88812522b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fa2c0e7138 CR3: 000000007d1d8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vms_gather_munmap_vmas+0x6ab/0x1380 mm/vma.c:1458
 do_vmi_align_munmap+0x2b4/0x4b0 mm/vma.c:1595
 do_vmi_munmap+0x252/0x2d0 mm/vma.c:1652
 do_munmap+0xf9/0x170 mm/mmap.c:1067
 mmap_action_finish mm/util.c:1422 [inline]
 mmap_action_complete+0x480/0x590 mm/util.c:1491
 compat_vma_mmap+0x243/0x2c0 mm/util.c:1280
 vfs_mmap include/linux/fs.h:2072 [inline]
 shm_mmap+0xda/0x200 ipc/shm.c:607
 vfs_mmap include/linux/fs.h:2074 [inline]
 mmap_file mm/internal.h:168 [inline]
 __mmap_new_file_vma mm/vma.c:2496 [inline]
 __mmap_new_vma mm/vma.c:2562 [inline]
 __mmap_region mm/vma.c:2771 [inline]
 mmap_region+0x1ab2/0x2280 mm/vma.c:2856
 do_mmap+0xc39/0x10c0 mm/mmap.c:560
 do_shmat+0x8d8/0xc10 ipc/shm.c:1662
 __do_sys_shmat ipc/shm.c:1698 [inline]
 __se_sys_shmat ipc/shm.c:1693 [inline]
 __x64_sys_shmat+0x9c/0xf0 ipc/shm.c:1693
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f18d839c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffeed816f8 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
RAX: ffffffffffffffda RBX: 00007f18d8615fa0 RCX: 00007f18d839c819
RDX: bbdccba4532b703b RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fffeed81760 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f18d8615fac R14: 00007f18d8615fa0 R15: 00007f18d8615fa0
 </TASK>