Extracting prog: 3m12.879716719s
Minimizing prog: 14m55.330089575s
Simplifying prog options: 3m45.744595007s
Extracting C: 1m46.95409174s
Simplifying C: 0s
extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program crashed: general protection fault in rwsem_mark_wake
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
program did not crash
testing program (duration=1m40s, {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}}): futex-futex-mlock2-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {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}}): futex-futex-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {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}}): futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {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}}): futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(0x0, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
extracting C reproducer
testing compiled C program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
program did not crash
simplifying guilty program options
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program did not crash
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program crashed: general protection fault in rwsem_mark_wake
validation run: crashed=true
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program crashed: general protection fault in rwsem_mark_wake
validation run: crashed=true
testing program (duration=1m40s, {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}}): futex-futex-mlock2-mremap-munlock
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f000000cffc)=0x1, 0x1, 0x800001, 0x0, 0x0, 0x0)
mlock2(&(0x7f0000ff5000/0x9000)=nil, 0x9000, 0x0)
mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil)
munlock(&(0x7f0000ffc000/0x1000)=nil, 0x1000)
program crashed: general protection fault in rwsem_mark_wake
validation run: crashed=true
reproducing took 27m35.132234711s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 UID: 0 PID: 6067 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:rwsem_mark_wake+0xfa/0x7c0 kernel/locking/rwsem.c:445
Code: 01 00 74 08 4c 89 f7 e8 74 d8 8d 00 4c 89 74 24 10 4d 8b 26 4d 8d 74 24 18 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 75 06 00 00 41 83 3e 00 74 64 4c 89 ef be
RSP: 0018:ffffc900025d7a80 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 1ffff920004baf5c RSI: ffffffff8e4d2edc RDI: ffffffff8c4a8700
RBP: ffffc900025d7b80 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520004baf6c R12: 0000000000000000
R13: ffff888030004dd0 R14: 0000000000000018 R15: ffffc900025d7d00
FS: 00007f68180006c0(0000) GS:ffff888124ee1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71ecfe9e80 CR3: 00000000738e4000 CR4: 00000000003526f0
Call Trace:
rwsem_del_wake_waiter+0x25d/0x2e0 kernel/locking/rwsem.c:612
rwsem_down_write_slowpath+0xa6f/0x1080 kernel/locking/rwsem.c:1234
__down_write_common kernel/locking/rwsem.c:1347 [inline]
__down_write_killable kernel/locking/rwsem.c:1361 [inline]
down_write_killable+0x1eb/0x240 kernel/locking/rwsem.c:1639
mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
__do_sys_munlock mm/mlock.c:688 [inline]
__se_sys_munlock+0x60/0x260 mm/mlock.c:679
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f681719c799
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:00007f6818000028 EFLAGS: 00000246 ORIG_RAX: 0000000000000096
RAX: ffffffffffffffda RBX: 00007f6817416090 RCX: 00007f681719c799
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000200000ffc000
RBP: 00007f6817232c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6817416128 R14: 00007f6817416090 R15: 00007ffcc0104748
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rwsem_mark_wake+0xfa/0x7c0 kernel/locking/rwsem.c:445
Code: 01 00 74 08 4c 89 f7 e8 74 d8 8d 00 4c 89 74 24 10 4d 8b 26 4d 8d 74 24 18 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 75 06 00 00 41 83 3e 00 74 64 4c 89 ef be
RSP: 0018:ffffc900025d7a80 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 1ffff920004baf5c RSI: ffffffff8e4d2edc RDI: ffffffff8c4a8700
RBP: ffffc900025d7b80 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520004baf6c R12: 0000000000000000
R13: ffff888030004dd0 R14: 0000000000000018 R15: ffffc900025d7d00
FS: 00007f68180006c0(0000) GS:ffff888124ee1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71ecfe9e80 CR3: 00000000738e4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 01 00 add %eax,(%rax)
2: 74 08 je 0xc
4: 4c 89 f7 mov %r14,%rdi
7: e8 74 d8 8d 00 call 0x8dd880
c: 4c 89 74 24 10 mov %r14,0x10(%rsp)
11: 4d 8b 26 mov (%r14),%r12
14: 4d 8d 74 24 18 lea 0x18(%r12),%r14
19: 4c 89 f0 mov %r14,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 75 06 00 00 jne 0x6ab
36: 41 83 3e 00 cmpl $0x0,(%r14)
3a: 74 64 je 0xa0
3c: 4c 89 ef mov %r13,%rdi
3f: be .byte 0xbe
final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 UID: 0 PID: 6067 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:rwsem_mark_wake+0xfa/0x7c0 kernel/locking/rwsem.c:445
Code: 01 00 74 08 4c 89 f7 e8 74 d8 8d 00 4c 89 74 24 10 4d 8b 26 4d 8d 74 24 18 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 75 06 00 00 41 83 3e 00 74 64 4c 89 ef be
RSP: 0018:ffffc900025d7a80 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 1ffff920004baf5c RSI: ffffffff8e4d2edc RDI: ffffffff8c4a8700
RBP: ffffc900025d7b80 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520004baf6c R12: 0000000000000000
R13: ffff888030004dd0 R14: 0000000000000018 R15: ffffc900025d7d00
FS: 00007f68180006c0(0000) GS:ffff888124ee1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71ecfe9e80 CR3: 00000000738e4000 CR4: 00000000003526f0
Call Trace:
rwsem_del_wake_waiter+0x25d/0x2e0 kernel/locking/rwsem.c:612
rwsem_down_write_slowpath+0xa6f/0x1080 kernel/locking/rwsem.c:1234
__down_write_common kernel/locking/rwsem.c:1347 [inline]
__down_write_killable kernel/locking/rwsem.c:1361 [inline]
down_write_killable+0x1eb/0x240 kernel/locking/rwsem.c:1639
mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
__do_sys_munlock mm/mlock.c:688 [inline]
__se_sys_munlock+0x60/0x260 mm/mlock.c:679
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f681719c799
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:00007f6818000028 EFLAGS: 00000246 ORIG_RAX: 0000000000000096
RAX: ffffffffffffffda RBX: 00007f6817416090 RCX: 00007f681719c799
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000200000ffc000
RBP: 00007f6817232c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6817416128 R14: 00007f6817416090 R15: 00007ffcc0104748
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rwsem_mark_wake+0xfa/0x7c0 kernel/locking/rwsem.c:445
Code: 01 00 74 08 4c 89 f7 e8 74 d8 8d 00 4c 89 74 24 10 4d 8b 26 4d 8d 74 24 18 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 75 06 00 00 41 83 3e 00 74 64 4c 89 ef be
RSP: 0018:ffffc900025d7a80 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 1ffff920004baf5c RSI: ffffffff8e4d2edc RDI: ffffffff8c4a8700
RBP: ffffc900025d7b80 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520004baf6c R12: 0000000000000000
R13: ffff888030004dd0 R14: 0000000000000018 R15: ffffc900025d7d00
FS: 00007f68180006c0(0000) GS:ffff888124ee1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71ecfe9e80 CR3: 00000000738e4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 01 00 add %eax,(%rax)
2: 74 08 je 0xc
4: 4c 89 f7 mov %r14,%rdi
7: e8 74 d8 8d 00 call 0x8dd880
c: 4c 89 74 24 10 mov %r14,0x10(%rsp)
11: 4d 8b 26 mov (%r14),%r12
14: 4d 8d 74 24 18 lea 0x18(%r12),%r14
19: 4c 89 f0 mov %r14,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 75 06 00 00 jne 0x6ab
36: 41 83 3e 00 cmpl $0x0,(%r14)
3a: 74 64 je 0xa0
3c: 4c 89 ef mov %r13,%rdi
3f: be .byte 0xbe