syzbot


INFO: task hung in corrupted

Status: upstream: reported C repro on 2025/06/20 06:52
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+274d970729e4d65065cf@syzkaller.appspotmail.com
First crash: 123d, last: 17d
Bug presence (1)
Date Name Commit Repro Result
2025/06/23 upstream (ToT) 86731a2a651e C [report] INFO: task hung in corrupted
Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task can't die in corrupted (2) kernel 1 C error error 539 3h26m 1775d 0/29 upstream: reported C repro on 2020/12/11 10:03
upstream INFO: task hung in corrupted kernel 1 syz 1 2642d 2642d 0/29 closed as invalid on 2018/07/29 11:55
android-44 INFO: task hung in corrupted 1 syz 1 2365d 2365d 0/2 public: reported syz repro on 2019/05/02 02:15
upstream INFO: task hung in corrupted (2) mptcp 1 C done inconclusive 15 1541d 1968d 0/29 closed as invalid on 2023/04/12 14:36
linux-4.19 INFO: task hung in corrupted 1 syz error 2 1398d 1407d 0/1 upstream: reported syz repro on 2021/12/14 06:15
Fix bisection attempts (2)
Created Duration User Patch Repo Result
2025/08/22 21:00 2h42m bisect fix linux-6.6.y OK (0) job log log
2025/07/21 03:47 2h55m bisect fix linux-6.6.y OK (0) job log log

Sample crash report:
INFO: task kworker/1:1:27 blocked for more than 142 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1     state:D stack:26504 pid:27    ppid:2      flags:0x00004000
Workqueue: events_power_efficient crda_timeout_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5380 [inline]
 __schedule+0x14d2/0x44d0 kernel/sched/core.c:6699
 schedule+0xbd/0x170 kernel/sched/core.c:6773
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6832
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x6b7/0xcc0 kernel/locking/mutex.c:747

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/05 00:23 linux-6.6.y f34f16e5c632 49379ee0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan INFO: task hung in corrupted
2025/06/20 06:51 linux-6.6.y 6282921b6825 ed3e87f7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan INFO: task hung in corrupted
2025/09/07 09:49 linux-6.6.y 355bd0b51d2f d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-6-kasan INFO: task hung in corrupted
* Struck through repros no longer work on HEAD.