Extracting prog: 42.641194181s
Minimizing prog: 3m19.161979409s
Simplifying prog options: 0s
Extracting C: 31.953622684s
Simplifying C: 4m29.779244431s


extracting reproducer from 31 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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x5, 0x2, 0x40eb2, 0x401, 0x300000000000)
mremap$auto(0x0, 0x7, 0x3fd6, 0x3, 0x20000000) (fail_nth: 3)

program crashed: WARNING in page_counter_cancel
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=53.137720579s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x5, 0x2, 0x40eb2, 0x401, 0x300000000000)

program did not crash
testing program (duration=53.137720579s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap$auto
detailed listing:
executing program 0:
mremap$auto(0x0, 0x7, 0x3fd6, 0x3, 0x20000000) (fail_nth: 3)

program did not crash
testing program (duration=53.137720579s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x5, 0x2, 0x40eb2, 0x401, 0x300000000000)
mremap$auto(0x0, 0x7, 0x3fd6, 0x3, 0x20000000)

program did not crash
extracting C reproducer
testing compiled C program (duration=53.137720579s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
simplifying C reproducer
testing compiled C program (duration=53.137720579s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
testing compiled C program (duration=53.137720579s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
testing compiled C program (duration=53.137720579s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
testing compiled C program (duration=53.137720579s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
testing compiled C program (duration=53.137720579s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
testing compiled C program (duration=53.137720579s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program crashed: WARNING in page_counter_cancel
testing compiled C program (duration=53.137720579s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-mremap$auto
program did not crash
reproducing took 9m3.53607064s
repro crashed as (corrupted=false):
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f8d6afae5f8
R13: 00007ffe6009fc90 R14: 00007f8d6af87581 R15: 0000000000000001
 </TASK>
------------[ cut here ]------------
page_counter underflow: -512 nr_pages=512
WARNING: CPU: 1 PID: 5831 at mm/page_counter.c:60 page_counter_cancel+0x110/0x170 mm/page_counter.c:60
Modules linked in:
CPU: 1 UID: 0 PID: 5831 Comm: syz-executor344 Not tainted 6.14.0-rc2-syzkaller-00041-g4dc1d1bec898 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:page_counter_cancel+0x110/0x170 mm/page_counter.c:60
Code: e8 a5 82 96 ff 45 84 ed 75 24 e8 fb 87 96 ff c6 05 69 07 26 0e 01 90 48 c7 c7 c0 35 7d 8b 4c 89 e2 48 89 ee e8 41 60 57 ff 90 <0f> 0b 90 90 e8 d7 87 96 ff be 08 00 00 00 48 89 df e8 0a 71 f9 ff
RSP: 0018:ffffc90003e5fae0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888140e99440 RCX: ffffffff8179c889
RDX: ffff888034220000 RSI: ffffffff8179c896 RDI: 0000000000000001
RBP: fffffffffffffe00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000200
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888033553740
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d6afb51b0 CR3: 000000000df80000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 page_counter_uncharge+0x32/0x70 mm/page_counter.c:182
 hugetlb_cgroup_uncharge_counter+0xd6/0x410 mm/hugetlb_cgroup.c:430
 hugetlb_vm_op_close+0x3fe/0x5b0 mm/hugetlb.c:5094
 vma_close mm/internal.h:147 [inline]
 remove_vma+0x91/0x1b0 mm/vma.c:412
 exit_mmap+0x511/0xba0 mm/mmap.c:1308
 __mmput+0x12a/0x410 kernel/fork.c:1356
 mmput+0x62/0x70 kernel/fork.c:1378
 exit_mm kernel/exit.c:570 [inline]
 do_exit+0x9ba/0x2d70 kernel/exit.c:925
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8d6af405a9
Code: Unable to access opcode bytes at 0x7f8d6af4057f.
RSP: 002b:00007ffe6009fd38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8d6af405a9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f8d6afb4350 R08: ffffffffffffffb8 R09: 0000550032333835
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f8d6afb4350
R13: 0000000000000000 R14: 00007f8d6afb4da0 R15: 00007f8d6af09ea0
 </TASK>

final repro crashed as (corrupted=false):
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f8d6afae5f8
R13: 00007ffe6009fc90 R14: 00007f8d6af87581 R15: 0000000000000001
 </TASK>
------------[ cut here ]------------
page_counter underflow: -512 nr_pages=512
WARNING: CPU: 1 PID: 5831 at mm/page_counter.c:60 page_counter_cancel+0x110/0x170 mm/page_counter.c:60
Modules linked in:
CPU: 1 UID: 0 PID: 5831 Comm: syz-executor344 Not tainted 6.14.0-rc2-syzkaller-00041-g4dc1d1bec898 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:page_counter_cancel+0x110/0x170 mm/page_counter.c:60
Code: e8 a5 82 96 ff 45 84 ed 75 24 e8 fb 87 96 ff c6 05 69 07 26 0e 01 90 48 c7 c7 c0 35 7d 8b 4c 89 e2 48 89 ee e8 41 60 57 ff 90 <0f> 0b 90 90 e8 d7 87 96 ff be 08 00 00 00 48 89 df e8 0a 71 f9 ff
RSP: 0018:ffffc90003e5fae0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888140e99440 RCX: ffffffff8179c889
RDX: ffff888034220000 RSI: ffffffff8179c896 RDI: 0000000000000001
RBP: fffffffffffffe00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000200
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888033553740
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d6afb51b0 CR3: 000000000df80000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 page_counter_uncharge+0x32/0x70 mm/page_counter.c:182
 hugetlb_cgroup_uncharge_counter+0xd6/0x410 mm/hugetlb_cgroup.c:430
 hugetlb_vm_op_close+0x3fe/0x5b0 mm/hugetlb.c:5094
 vma_close mm/internal.h:147 [inline]
 remove_vma+0x91/0x1b0 mm/vma.c:412
 exit_mmap+0x511/0xba0 mm/mmap.c:1308
 __mmput+0x12a/0x410 kernel/fork.c:1356
 mmput+0x62/0x70 kernel/fork.c:1378
 exit_mm kernel/exit.c:570 [inline]
 do_exit+0x9ba/0x2d70 kernel/exit.c:925
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
 x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8d6af405a9
Code: Unable to access opcode bytes at 0x7f8d6af4057f.
RSP: 002b:00007ffe6009fd38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8d6af405a9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f8d6afb4350 R08: ffffffffffffffb8 R09: 0000550032333835
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f8d6afb4350
R13: 0000000000000000 R14: 00007f8d6afb4da0 R15: 00007f8d6af09ea0
 </TASK>