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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: 267d, last: 5d06h
Fix bisection: failed (error log, bisect log)
  
▶ ▼ 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 702 53m 1919d 0/29 upstream: reported C repro on 2020/12/11 10:03
upstream INFO: task hung in corrupted kernel 1 syz 1 2786d 2786d 0/29 closed as invalid on 2018/07/29 11:55
android-44 INFO: task hung in corrupted 1 syz 1 2509d 2509d 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 1685d 2112d 0/29 closed as invalid on 2023/04/12 14:36
linux-4.19 INFO: task hung in corrupted 1 syz error 2 1542d 1551d 0/1 upstream: reported syz repro on 2021/12/14 06:15
▶ ▼ Fix bisection attempts (5)
Created Duration User Patch Repo Result
2026/02/24 05:48 0m bisect fix linux-6.6.y error job log
2026/01/12 04:25 2h34m bisect fix linux-6.6.y OK (0) job log log
2025/11/11 16:07 3h07m bisect fix linux-6.6.y OK (0) job log log
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/u4:6:1129 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6    state:D stack:23064 pid:1129  ppid:2      flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1553/0x45a0 kernel/sched/core.c:6700

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/09 20:29 linux-6.6.y 4fc00fe35d46 176bead5 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf INFO: task hung in corrupted
2026/03/09 18:11 linux-6.6.y 4fc00fe35d46 176bead5 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf INFO: task hung in corrupted
2026/03/09 12:49 linux-6.6.y 4fc00fe35d46 5cb44a80 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf INFO: task hung in corrupted
2026/01/25 05:35 linux-6.6.y cbb31f77b879 40acda8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf INFO: task hung in corrupted
2026/01/24 02:31 linux-6.6.y cbb31f77b879 4f25b9b4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf INFO: task hung in corrupted
2025/12/09 10:42 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan INFO: task hung in corrupted
2025/12/04 01:35 linux-6.6.y 4791134e4aeb d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan INFO: task hung in corrupted
2025/12/02 11:01 linux-6.6.y 4791134e4aeb d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf INFO: task hung in corrupted
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.