Extracting prog: 1m26.250853414s
Minimizing prog: 3m9.293623451s
Simplifying prog options: 0s
Extracting C: 23.904510693s
Simplifying C: 3m47.023208625s


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: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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0)
fadvise64(r0, 0x0, 0x0, 0x3)

program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=35.290026274s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$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")
openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0)

program did not crash
testing program (duration=35.290026274s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$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")
fadvise64(0xffffffffffffffff, 0x0, 0x0, 0x3)

program did not crash
testing program (duration=35.290026274s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-fadvise64
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0)
fadvise64(r0, 0x0, 0x0, 0x3)

program did not crash
testing program (duration=35.290026274s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$eJzsmb+r01AUx7/3Ji/1PURwcXWw4BN9aZIqdClSwV2oim4WG6WaWmkjtAXB4uLi6CC4+g84OHRycHNz1UEFwcGObsKVe3PTXNJGGqwung/05NtzT3Lur5wLLQiC+G/58vnHp6cXGpfPADiMKira/83KYrgR//H5g9PPmhdfvPrw8u29Iw/n+edVSuaXad60LMTY1R4hzPaqssyWvahq3xVwnDJiHH29AY6rWodguK71HUMP0jRR6N4cRN1bvSj0pPGlCaSpm/ltAIsZQxfAIdU7IZjRPppM73aiKBzmxY5I86w0lRW/mz/VvxZHM509C0Ku17Unj2fsURbnGfPng8PXug6GttYNVOC6bjYlxvg5S1dHCGuT8W9NWFLIJS5/+9GDcrnOKyE3298bzjohR7dB8O42NhOJkOU9cm8vPccW83erd3398+zsn70yOaEKF4CVpvd7UrB1TRuJtPCui3Gy+iRfqJPI6oetvAm1uH+/NppMD3r9zu0w9Z71vHNBTRWixCqvebb8XNY/G5gx7BnP3ymslg7GnTge+mMgHvoO09+DxBoVt/168F3dwVX949g/kTyBpedNwUHH9Ierq1T7VmF3CIIgCIIgCIIgCIIgCIIgSnEcTP0Kqv+oEgUEl1T0rwAAAP//Y7ZUwA==")
r0 = openat(0xffffffffffffff9c, 0x0, 0x0, 0x0)
fadvise64(r0, 0x0, 0x0, 0x3)

program did not crash
extracting C reproducer
testing compiled C program (duration=35.290026274s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
simplifying C reproducer
testing compiled C program (duration=35.290026274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
testing compiled C program (duration=35.290026274s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
testing compiled C program (duration=35.290026274s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
testing compiled C program (duration=35.290026274s, {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}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
testing compiled C program (duration=35.290026274s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
testing compiled C program (duration=35.290026274s, {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}}): syz_mount_image$erofs-openat-fadvise64
program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
testing program (duration=35.290026274s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0)
fadvise64(r0, 0x0, 0x0, 0x3)

program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
validation run: crashed=true
testing program (duration=35.290026274s, {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}}): syz_mount_image$erofs-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0)
fadvise64(r0, 0x0, 0x0, 0x3)

program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
validation run: crashed=true
testing program (duration=35.290026274s, {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}}): syz_mount_image$erofs-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000440), &(0x7f0000000180)='./file0\x00', 0x10410, &(0x7f0000000480)=ANY=[], 0x1, 0x1ed, &(0x7f0000000cc0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x0)
fadvise64(r0, 0x0, 0x0, 0x3)

program crashed: BUG: scheduling while atomic in exit_to_user_mode_loop
validation run: crashed=true
reproducing took 10m45.999384045s
repro crashed as (corrupted=false):
attempt to access beyond end of device
loop2: rw=524288, want=296, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=1048976, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=672, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=3670472, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=790384, limit=16
BUG: scheduling while atomic: syz.2.17/389/0x00000004
Modules linked in:
Preemption disabled at:
[<ffffffff8215c930>] kmap_atomic include/linux/highmem.h:156 [inline]
[<ffffffff8215c930>] z_erofs_reload_indexes+0x1d0/0x450 fs/erofs/zmap.c:132
CPU: 1 PID: 389 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 dump_stack+0x15/0x1c lib/dump_stack.c:135
 __schedule_bug+0x183/0x240 kernel/sched/core.c:4545
 schedule_debug kernel/sched/core.c:4572 [inline]
 __schedule+0xc45/0x1320 kernel/sched/core.c:4700
 schedule+0x13c/0x1d0 kernel/sched/core.c:4884
 exit_to_user_mode_loop+0x4b/0xe0 kernel/entry/common.c:160
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff15f275eb9
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:00007fff7825e2b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd
RAX: 0000000000000000 RBX: 00007ff15f4f0fa0 RCX: 00007ff15f275eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007ff15f2e3c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff15f4f0fac R14: 00007ff15f4f0fa0 R15: 00007ff15f4f0fa0

final repro crashed as (corrupted=false):
attempt to access beyond end of device
loop2: rw=524288, want=296, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=1048976, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=672, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=3670472, limit=16
attempt to access beyond end of device
loop2: rw=524288, want=790384, limit=16
BUG: scheduling while atomic: syz.2.17/389/0x00000004
Modules linked in:
Preemption disabled at:
[<ffffffff8215c930>] kmap_atomic include/linux/highmem.h:156 [inline]
[<ffffffff8215c930>] z_erofs_reload_indexes+0x1d0/0x450 fs/erofs/zmap.c:132
CPU: 1 PID: 389 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 dump_stack+0x15/0x1c lib/dump_stack.c:135
 __schedule_bug+0x183/0x240 kernel/sched/core.c:4545
 schedule_debug kernel/sched/core.c:4572 [inline]
 __schedule+0xc45/0x1320 kernel/sched/core.c:4700
 schedule+0x13c/0x1d0 kernel/sched/core.c:4884
 exit_to_user_mode_loop+0x4b/0xe0 kernel/entry/common.c:160
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7ff15f275eb9
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:00007fff7825e2b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd
RAX: 0000000000000000 RBX: 00007ff15f4f0fa0 RCX: 00007ff15f275eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007ff15f2e3c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff15f4f0fac R14: 00007ff15f4f0fa0 R15: 00007ff15f4f0fa0