syzbot |
sign-in | mailing list | source | docs |
| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | INFO: task hung in acct kernel | 1 | C | 1 | 102d | 102d | 0/29 | auto-obsoleted due to no activity on 2025/12/25 18:56 | ||
| linux-4.14 | INFO: task hung in acct | 1 | 1 | 1695d | 1695d | 0/1 | auto-closed as invalid on 2021/09/05 08:45 |
| Created | Duration | User | Patch | Repo | Result |
|---|---|---|---|---|---|
| 2021/11/23 09:46 | 11m | bisect fix | linux-4.19.y | error job log | |
| 2021/09/22 23:46 | 43m | bisect fix | linux-4.19.y | OK (0) job log log | |
| 2021/08/22 10:18 | 41m | bisect fix | linux-4.19.y | OK (0) job log log | |
| 2021/07/23 09:43 | 34m | bisect fix | linux-4.19.y | OK (0) job log log | |
| 2021/06/23 09:09 | 34m | bisect fix | linux-4.19.y | OK (0) job log log | |
| 2021/05/24 08:10 | 42m | bisect fix | linux-4.19.y | OK (0) job log log | |
| 2021/04/12 09:21 | 39m | bisect fix | linux-4.19.y | OK (0) job log log | |
| 2021/03/13 07:49 | 35m | bisect fix | linux-4.19.y | OK (0) job log log |
autofs4:pid:8109:autofs_fill_super: called with bogus options
autofs4:pid:8110:autofs_fill_super: called with bogus options
autofs4:pid:8113:autofs_fill_super: called with bogus options
INFO: task syz-executor318:8112 blocked for more than 140 seconds.
Not tainted 4.19.172-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor318 D28536 8112 8095 0x00000004
Call Trace:
context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517
schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561
schedule_preempt_disabled+0xf/0x20 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3619
__mutex_lock_common syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x647/0x1260 syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1072
__do_sys_acct syzkaller/managers/linux-4-19/kernel/kernel/acct.c:285 [inline]
__se_sys_acct+0x8c/0x930 syzkaller/managers/linux-4-19/kernel/kernel/acct.c:273
do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x43fc09
Code: Bad RIP value.
RSP: 002b:00007fff10542898 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 000000000043fc09
RDX: ffffffffffffffc0 RSI: 0000000000000000 RDI: 00000000200001c0
RBP: 0000000000000000 R08: 00007fff10542a38 R09: 00007fff10542a38
R10: 00007fff10542a38 R11: 0000000000000246 R12: 00007fff105428ac
R13: 431bde82d7b634db R14: 00000000004ad018 R15: 0000000000400488
Showing all locks held in the system:
1 lock held by khungtaskd/1566:
#0: 00000000b8b1d31f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 syzkaller/managers/linux-4-19/kernel/kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7791:
#0: 00000000890973f3 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 syzkaller/managers/linux-4-19/kernel/fs/file.c:767
1 lock held by syz-executor318/8111:
#0: 00000000a098d295 (acct_on_mutex){+.+.}, at: __do_sys_acct syzkaller/managers/linux-4-19/kernel/kernel/acct.c:285 [inline]
#0: 00000000a098d295 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 syzkaller/managers/linux-4-19/kernel/kernel/acct.c:273
1 lock held by syz-executor318/8112:
#0: 00000000a098d295 (acct_on_mutex){+.+.}, at: __do_sys_acct syzkaller/managers/linux-4-19/kernel/kernel/acct.c:285 [inline]
#0: 00000000a098d295 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 syzkaller/managers/linux-4-19/kernel/kernel/acct.c:273
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 syzkaller/managers/linux-4-19/kernel/lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 syzkaller/managers/linux-4-19/kernel/lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace syzkaller/managers/linux-4-19/kernel/./include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks syzkaller/managers/linux-4-19/kernel/kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 syzkaller/managers/linux-4-19/kernel/kernel/hung_task.c:287
kthread+0x33f/0x460 syzkaller/managers/linux-4-19/kernel/kernel/kthread.c:259
ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4681 Comm: systemd-journal Not tainted 4.19.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:trace_hardirqs_off+0x4/0x200 syzkaller/managers/linux-4-19/kernel/kernel/trace/trace_preemptirq.c:35
Code: ff 48 89 df e8 0d 90 30 00 eb 93 e8 06 90 30 00 e9 6a ff ff ff 4c 89 e7 e8 f9 8f 30 00 e9 34 ff ff ff 0f 1f 40 00 41 56 41 55 <41> 54 55 53 e8 63 d8 fa ff 65 8b 1d 4c ea 9a 7e 31 ff 89 de e8 c3
RSP: 0018:ffff8880a15779e0 EFLAGS: 00000082
RAX: 0000000000000286 RBX: 00000000006080c0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880a156c2e4
RBP: 00000000006080c0 R08: ffffffff8cd1b3c0 R09: 0000000000000000
R10: 0000000000000005 R11: 00000000d5f8e018 R12: 0000000000200000
R13: ffff88813bff04c0 R14: 0000000000000048 R15: ffff88813bff04c0
FS: 00007fda975f68c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda949c6028 CR3: 00000000a1973000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
slab_alloc syzkaller/managers/linux-4-19/kernel/mm/slab.c:3388 [inline]
kmem_cache_alloc_trace+0x9b/0x380 syzkaller/managers/linux-4-19/kernel/mm/slab.c:3623
kmalloc syzkaller/managers/linux-4-19/kernel/./include/linux/slab.h:515 [inline]
kzalloc syzkaller/managers/linux-4-19/kernel/./include/linux/slab.h:709 [inline]
aa_alloc_file_ctx syzkaller/managers/linux-4-19/kernel/security/apparmor/include/file.h:60 [inline]
apparmor_file_alloc_security+0x394/0xad0 syzkaller/managers/linux-4-19/kernel/security/apparmor/lsm.c:438
security_file_alloc+0x40/0x90 syzkaller/managers/linux-4-19/kernel/security/security.c:880
__alloc_file+0xc9/0x330 syzkaller/managers/linux-4-19/kernel/fs/file_table.c:105
alloc_empty_file+0x6d/0x170 syzkaller/managers/linux-4-19/kernel/fs/file_table.c:150
path_openat+0xe9/0x2df0 syzkaller/managers/linux-4-19/kernel/fs/namei.c:3526
do_filp_open+0x18c/0x3f0 syzkaller/managers/linux-4-19/kernel/fs/namei.c:3567
do_sys_open+0x3b3/0x520 syzkaller/managers/linux-4-19/kernel/fs/open.c:1085
do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fda96b86840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24
RSP: 002b:00007ffc0a830d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffc0a831020 RCX: 00007fda96b86840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000056268a9fdc50
RBP: 000000000000000d R08: 000000000000c0ff R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000056268a9f1040 R14: 00007ffc0a830fe0 R15: 000056268a9fdca0
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021/02/11 07:49 | linux-4.19.y | 811218eceeaa | a52ee10a | .config | console log | report | syz | C | ci2-linux-4-19 | INFO: task hung in acct | ||
| 2021/02/03 09:40 | linux-4.19.y | 811218eceeaa | 624dad51 | .config | console log | report | syz | C | ci2-linux-4-19 | INFO: task hung in acct | ||
| 2021/10/24 09:46 | linux-4.19.y | 3f8a27f9e27b | 282f03fb | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct | |||
| 2021/10/20 05:53 | linux-4.19.y | 3f8a27f9e27b | 466b7db1 | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct | |||
| 2021/10/05 00:25 | linux-4.19.y | c2276d585654 | ce697b49 | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct | |||
| 2021/08/23 21:12 | linux-4.19.y | 59456c9cc40c | b599f2fc | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct | |||
| 2021/04/24 08:10 | linux-4.19.y | 2965db2e004c | 17f0b706 | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct | |||
| 2021/04/20 08:38 | linux-4.19.y | 2965db2e004c | c0ced557 | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct | |||
| 2021/02/03 06:44 | linux-4.19.y | 811218eceeaa | 624dad51 | .config | console log | report | info | ci2-linux-4-19 | INFO: task hung in acct |