Extracting prog: 45.996264049s
Minimizing prog: 7m16.647349396s
Simplifying prog options: 0s
Extracting C: 3m7.395285617s
Simplifying C: 5m29.039175442s


extracting reproducer from 67 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: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}}): userfaultfd-mmap$IORING_OFF_SQ_RING-ioctl$UFFDIO_API-remap_file_pages-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY
detailed listing:
executing program 0:
r0 = userfaultfd(0x80801)
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x600})
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x7})
ioctl$UFFDIO_COPY(r0, 0xc028aa03, &(0x7f0000000000)={&(0x7f0000800000/0x800000)=nil, &(0x7f0000199000/0x800000)=nil, 0x800000, 0x2})

program crashed: WARNING in hugetlb_split
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): userfaultfd-mmap$IORING_OFF_SQ_RING-ioctl$UFFDIO_API-remap_file_pages-ioctl$UFFDIO_REGISTER
detailed listing:
executing program 0:
r0 = userfaultfd(0x80801)
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x600})
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x7})

program crashed: WARNING in hugetlb_split
testing program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): userfaultfd-mmap$IORING_OFF_SQ_RING-ioctl$UFFDIO_API-remap_file_pages
detailed listing:
executing program 0:
r0 = userfaultfd(0x80801)
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x600})
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program crashed: WARNING in hugetlb_split
testing program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): userfaultfd-mmap$IORING_OFF_SQ_RING-ioctl$UFFDIO_API
detailed listing:
executing program 0:
r0 = userfaultfd(0x80801)
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x600})

program did not crash
testing program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): userfaultfd-mmap$IORING_OFF_SQ_RING-remap_file_pages
detailed listing:
executing program 0:
userfaultfd(0x80801)
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program crashed: WARNING in hugetlb_split
testing program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): userfaultfd-remap_file_pages
detailed listing:
executing program 0:
userfaultfd(0x80801)
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program did not crash
testing program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$IORING_OFF_SQ_RING-remap_file_pages
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program crashed: WARNING in hugetlb_split
extracting C reproducer
testing compiled C program (duration=45.520386666s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
simplifying C reproducer
testing compiled C program (duration=45.520386666s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing compiled C program (duration=45.520386666s, {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$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing compiled C program (duration=45.520386666s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing compiled C program (duration=45.520386666s, {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$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing compiled C program (duration=45.520386666s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing compiled C program (duration=45.520386666s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing compiled C program (duration=45.520386666s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
program crashed: WARNING in hugetlb_split
testing program (duration=45.520386666s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program crashed: WARNING in hugetlb_split
validation run: crashed=true
testing program (duration=45.520386666s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program crashed: WARNING in hugetlb_split
validation run: crashed=true
testing program (duration=45.520386666s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-remap_file_pages
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x3000002, 0x5d031, 0xffffffffffffffff, 0x0)
remap_file_pages(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x0, 0x0, 0xf0ffffff)

program crashed: WARNING in hugetlb_split
validation run: crashed=true
reproducing took 19m47.864156762s
repro crashed as (corrupted=false):
mmap: syz.0.17 (4432) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4432 at include/linux/fs.h:532 i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
WARNING: CPU: 0 PID: 4432 at include/linux/fs.h:532 hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Modules linked in:
CPU: 0 PID: 4432 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
RIP: 0010:hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Code: bf ff 4c 89 f7 48 89 de 4c 89 fa 31 c9 5b 41 5c 41 5d 41 5e 41 5f 5d eb 7a e8 95 b0 bf ff 0f 0b e9 62 fe ff ff e8 89 b0 bf ff <0f> 0b e9 2d ff ff ff 48 c7 c1 c4 0e 8a 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000309fa80 EFLAGS: 00010293
RAX: ffffffff81b971b7 RBX: 0000200000400000 RCX: ffff88807bcbd940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807df1f7bf R09: 1ffff1100fbe3ef7
R10: dffffc0000000000 R11: ffffed100fbe3ef8 R12: ffff888024a2de08
R13: dffffc0000000000 R14: ffff888024a2dd68 R15: ffff8880254d0e40
FS:  0000555577c33500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34063fff CR3: 00000000718e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vma_adjust+0x2b6/0x1c10 mm/mmap.c:843
 vma_adjust include/linux/mm.h:2567 [inline]
 __split_vma+0x34b/0x410 mm/mmap.c:-1
 __do_munmap+0x383/0xdf0 mm/mmap.c:2856
 do_munmap mm/mmap.c:2910 [inline]
 munmap_vma_range mm/mmap.c:603 [inline]
 __mmap_region mm/mmap.c:1757 [inline]
 mmap_region+0x8b4/0x1650 mm/mmap.c:2933
 do_mmap+0x819/0xe90 mm/mmap.c:1586
 __do_sys_remap_file_pages mm/mmap.c:3050 [inline]
 __se_sys_remap_file_pages+0x4ce/0x670 mm/mmap.c:2985
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6177ac4f79
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:00007ffc50a68978 EFLAGS: 00000246 ORIG_RAX: 00000000000000d8
RAX: ffffffffffffffda RBX: 00007f6177d3efa0 RCX: 00007f6177ac4f79
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000200000800000
RBP: 00007f6177b5b7e0 R08: 00000000f0ffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6177d3efac R14: 00007f6177d3efa0 R15: 00007f6177d3efa0
 </TASK>

final repro crashed as (corrupted=false):
mmap: syz.0.17 (4432) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4432 at include/linux/fs.h:532 i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
WARNING: CPU: 0 PID: 4432 at include/linux/fs.h:532 hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Modules linked in:
CPU: 0 PID: 4432 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:i_mmap_assert_write_locked include/linux/fs.h:532 [inline]
RIP: 0010:hugetlb_split+0x237/0x2a0 mm/hugetlb.c:4182
Code: bf ff 4c 89 f7 48 89 de 4c 89 fa 31 c9 5b 41 5c 41 5d 41 5e 41 5f 5d eb 7a e8 95 b0 bf ff 0f 0b e9 62 fe ff ff e8 89 b0 bf ff <0f> 0b e9 2d ff ff ff 48 c7 c1 c4 0e 8a 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000309fa80 EFLAGS: 00010293
RAX: ffffffff81b971b7 RBX: 0000200000400000 RCX: ffff88807bcbd940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807df1f7bf R09: 1ffff1100fbe3ef7
R10: dffffc0000000000 R11: ffffed100fbe3ef8 R12: ffff888024a2de08
R13: dffffc0000000000 R14: ffff888024a2dd68 R15: ffff8880254d0e40
FS:  0000555577c33500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34063fff CR3: 00000000718e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vma_adjust+0x2b6/0x1c10 mm/mmap.c:843
 vma_adjust include/linux/mm.h:2567 [inline]
 __split_vma+0x34b/0x410 mm/mmap.c:-1
 __do_munmap+0x383/0xdf0 mm/mmap.c:2856
 do_munmap mm/mmap.c:2910 [inline]
 munmap_vma_range mm/mmap.c:603 [inline]
 __mmap_region mm/mmap.c:1757 [inline]
 mmap_region+0x8b4/0x1650 mm/mmap.c:2933
 do_mmap+0x819/0xe90 mm/mmap.c:1586
 __do_sys_remap_file_pages mm/mmap.c:3050 [inline]
 __se_sys_remap_file_pages+0x4ce/0x670 mm/mmap.c:2985
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6177ac4f79
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:00007ffc50a68978 EFLAGS: 00000246 ORIG_RAX: 00000000000000d8
RAX: ffffffffffffffda RBX: 00007f6177d3efa0 RCX: 00007f6177ac4f79
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000200000800000
RBP: 00007f6177b5b7e0 R08: 00000000f0ffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6177d3efac R14: 00007f6177d3efa0 R15: 00007f6177d3efa0
 </TASK>