Extracting prog: 2m15.5833135s
Minimizing prog: 113.29µs
Simplifying prog options: 0s
Extracting C: 30.805114531s
Simplifying C: 19m30.031344909s


1 programs, timeouts [30s 1m40s 6m0s]
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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
detailed listing:
executing program 0:
syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x10008d8, &(0x7f0000000580)=ANY=[@ANYBLOB="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", @ANYRES16], 0x1, 0x443b, &(0x7f00000088c0)="$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program crashed: kernel BUG in _ocfs2_free_suballoc_bits
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
extracting C reproducer
testing compiled C program (duration=1m0.083155465s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: kernel BUG in _ocfs2_free_suballoc_bits
simplifying C reproducer
testing compiled C program (duration=1m0.083155465s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: kernel BUG in _ocfs2_free_suballoc_bits
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: kernel BUG in _ocfs2_free_suballoc_bits
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true 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}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false 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}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: KASAN: slab-use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: slab-use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true 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}}): syz_mount_image$ocfs2
program crashed: kernel BUG in _ocfs2_free_suballoc_bits
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: kernel BUG in _ocfs2_free_suballoc_bits
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: kernel BUG in _ocfs2_free_suballoc_bits
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program crashed: KASAN: use-after-free Read in __ocfs2_flush_truncate_log
a never seen crash title: KASAN: use-after-free Read in __ocfs2_flush_truncate_log, ignore
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program did not crash
testing compiled C program (duration=1m0.083155465s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2
program did not crash
reproducing took 22m16.419921211s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2543!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 954 Comm: kworker/u8:5 Not tainted 6.12.0-rc2-syzkaller-00305-g7234e2ea0edd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: ocfs2_wq ocfs2_truncate_log_worker
RIP: 0010:_ocfs2_free_suballoc_bits+0x11aa/0x14a0 fs/ocfs2/suballoc.c:2543
Code: e1 80 e1 07 80 c1 03 38 c1 0f 8c 92 fb ff ff 4c 89 e7 e8 19 4a 68 fe e9 85 fb ff ff e8 3f bc 01 fe 90 0f 0b e8 37 bc 01 fe 90 <0f> 0b f3 0f 1e fa 65 8b 1d b5 ac 70 7c bf 07 00 00 00 89 de e8 5d
RSP: 0018:ffffc90003a9f640 EFLAGS: 00010293
RAX: ffffffff83932ac9 RBX: 0000000000000e00 RCX: ffff888025d78000
RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 00000000000083ef
RBP: ffffc90003a9f7e8 R08: ffffffff83931a8c R09: 0000000000007fcf
R10: dffffc0000000000 R11: fffffbfff20378de R12: 00000000000083ef
R13: dffffc0000000000 R14: ffff8880bffb6e00 R15: 0000000000000e00
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555941c788 CR3: 0000000031f8e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5ff/0xad0 fs/ocfs2/suballoc.c:2646
 ocfs2_replay_truncate_records fs/ocfs2/alloc.c:5971 [inline]
 __ocfs2_flush_truncate_log+0x760/0x1250 fs/ocfs2/alloc.c:6054
 ocfs2_flush_truncate_log fs/ocfs2/alloc.c:6076 [inline]
 ocfs2_truncate_log_worker+0xa2/0x1b0 fs/ocfs2/alloc.c:6089
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0x11aa/0x14a0 fs/ocfs2/suballoc.c:2543
Code: e1 80 e1 07 80 c1 03 38 c1 0f 8c 92 fb ff ff 4c 89 e7 e8 19 4a 68 fe e9 85 fb ff ff e8 3f bc 01 fe 90 0f 0b e8 37 bc 01 fe 90 <0f> 0b f3 0f 1e fa 65 8b 1d b5 ac 70 7c bf 07 00 00 00 89 de e8 5d
RSP: 0018:ffffc90003a9f640 EFLAGS: 00010293
RAX: ffffffff83932ac9 RBX: 0000000000000e00 RCX: ffff888025d78000
RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 00000000000083ef
RBP: ffffc90003a9f7e8 R08: ffffffff83931a8c R09: 0000000000007fcf
R10: dffffc0000000000 R11: fffffbfff20378de R12: 00000000000083ef
R13: dffffc0000000000 R14: ffff8880bffb6e00 R15: 0000000000000e00
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ed82464078 CR3: 0000000031664000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2543!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 954 Comm: kworker/u8:5 Not tainted 6.12.0-rc2-syzkaller-00305-g7234e2ea0edd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: ocfs2_wq ocfs2_truncate_log_worker
RIP: 0010:_ocfs2_free_suballoc_bits+0x11aa/0x14a0 fs/ocfs2/suballoc.c:2543
Code: e1 80 e1 07 80 c1 03 38 c1 0f 8c 92 fb ff ff 4c 89 e7 e8 19 4a 68 fe e9 85 fb ff ff e8 3f bc 01 fe 90 0f 0b e8 37 bc 01 fe 90 <0f> 0b f3 0f 1e fa 65 8b 1d b5 ac 70 7c bf 07 00 00 00 89 de e8 5d
RSP: 0018:ffffc90003a9f640 EFLAGS: 00010293
RAX: ffffffff83932ac9 RBX: 0000000000000e00 RCX: ffff888025d78000
RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 00000000000083ef
RBP: ffffc90003a9f7e8 R08: ffffffff83931a8c R09: 0000000000007fcf
R10: dffffc0000000000 R11: fffffbfff20378de R12: 00000000000083ef
R13: dffffc0000000000 R14: ffff8880bffb6e00 R15: 0000000000000e00
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555941c788 CR3: 0000000031f8e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5ff/0xad0 fs/ocfs2/suballoc.c:2646
 ocfs2_replay_truncate_records fs/ocfs2/alloc.c:5971 [inline]
 __ocfs2_flush_truncate_log+0x760/0x1250 fs/ocfs2/alloc.c:6054
 ocfs2_flush_truncate_log fs/ocfs2/alloc.c:6076 [inline]
 ocfs2_truncate_log_worker+0xa2/0x1b0 fs/ocfs2/alloc.c:6089
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0x11aa/0x14a0 fs/ocfs2/suballoc.c:2543
Code: e1 80 e1 07 80 c1 03 38 c1 0f 8c 92 fb ff ff 4c 89 e7 e8 19 4a 68 fe e9 85 fb ff ff e8 3f bc 01 fe 90 0f 0b e8 37 bc 01 fe 90 <0f> 0b f3 0f 1e fa 65 8b 1d b5 ac 70 7c bf 07 00 00 00 89 de e8 5d
RSP: 0018:ffffc90003a9f640 EFLAGS: 00010293
RAX: ffffffff83932ac9 RBX: 0000000000000e00 RCX: ffff888025d78000
RDX: 0000000000000000 RSI: 0000000000000e00 RDI: 00000000000083ef
RBP: ffffc90003a9f7e8 R08: ffffffff83931a8c R09: 0000000000007fcf
R10: dffffc0000000000 R11: fffffbfff20378de R12: 00000000000083ef
R13: dffffc0000000000 R14: ffff8880bffb6e00 R15: 0000000000000e00
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ed82464078 CR3: 0000000031664000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400