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INFO: rcu detected stall in corrupted

Status: upstream: reported C repro on 2023/03/13 04:03
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+675efd00db19530582a5@syzkaller.appspotmail.com
First crash: 848d, last: 8d10h
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2024/10/26 linux-6.1.y (ToT) 7ec6f9fa3d97 C [report] INFO: rcu detected stall in batadv_nc_worker
2023/12/09 upstream (ToT) f2e8a57ee903 C [report] INFO: rcu detected stall in corrupted
2024/10/26 upstream (ToT) 850925a8133c C Didn't crash
▶ ▼ Similar bugs (20)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 INFO: rcu detected stall in corrupted C 3 2208d 2281d 0/1 public: reported C repro on 2019/04/10 16:04
android-49 INFO: rcu detected stall in corrupted C 27 2093d 2278d 0/3 public: reported C repro on 2019/04/14 00:00
upstream INFO: rcu detected stall in corrupted (3) kernel C done 1 2297d 2293d 0/29 closed as invalid on 2019/03/30 00:13
linux-4.14 INFO: rcu detected stall in corrupted (2) C error 4 1851d 2012d 0/1 upstream: reported C repro on 2020/01/04 08:54
linux-6.6 INFO: rcu detected stall in corrupted origin:lts-only C 5 1d15h 15d 0/2 upstream: reported C repro on 2025/06/23 09:19
upstream INFO: rcu detected stall in corrupted (4) tipc C done inconclusive 668 13d 1768d 0/29 upstream: reported C repro on 2020/09/04 18:49
upstream INFO: rcu detected stall in corrupted net syz 1 2605d 2605d 8/29 fixed on 2018/07/09 18:05
linux-4.14 INFO: rcu detected stall in corrupted C done 3 2125d 2147d 1/1 fixed on 2019/12/05 23:59
linux-4.19 INFO: rcu detected stall in corrupted C error 2 1265d 1972d 0/1 upstream: reported C repro on 2020/02/13 05:06
upstream INFO: rcu detected stall in corrupted (2) kernel syz 1 2537d 2537d 0/29 closed as invalid on 2018/07/29 11:55
linux-5.15 INFO: rcu detected stall in corrupted origin:lts-only C error 25 1d14h 624d 0/3 upstream: reported C repro on 2023/10/23 02:41
upstream INFO: task hung in exit_aio (4) fs 6 207d 273d 0/29 auto-obsoleted due to no activity on 2025/03/13 05:51
android-5-15 BUG: soft lockup in corrupted origin:upstream C error 33 297d 453d 0/2 upstream: reported C repro on 2024/04/11 09:01
upstream BUG: workqueue lockup (5) net C done 12828 9h29m 2002d 0/29 upstream: reported C repro on 2020/01/14 22:04
upstream INFO: task hung in nsim_destroy (4) net 428 9d06h 403d 0/29 upstream: reported on 2024/05/31 11:16
upstream INFO: task hung in reg_process_self_managed_hints wireless C done 708 1d03h 687d 0/29 upstream: reported C repro on 2023/08/21 16:36
linux-4.14 BUG: soft lockup in corrupted C error 12 1073d 1556d 0/1 upstream: reported C repro on 2021/04/04 06:30
upstream INFO: task hung in reg_check_chans_work (7) wireless C error 581 9h27m 288d 0/29 upstream: reported C repro on 2024/09/23 08:39
upstream INFO: task hung in uevent_show (2) kernel C inconclusive 8325 3d02h 241d 0/29 upstream: reported C repro on 2024/11/09 14:37
linux-4.19 BUG: soft lockup in corrupted C error 3 1102d 1290d 0/1 upstream: reported C repro on 2021/12/26 20:46
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/05/14 00:00 1h54m fix candidate upstream OK (0) job log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=5737, q=118 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10501 (4294953458-4294942957), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g5737 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28096 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
 schedule+0xb9/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2f2/0x1310 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0x95/0x380 kernel/rcu/tree.c:1905
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 4281 Comm: syz-executor749 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:97 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x2a/0x80 kernel/entry/common.c:118
Code: 41 56 53 48 89 f3 49 89 fe 48 8b 7c 24 10 e8 ed fa ff ff 66 90 66 90 e8 04 5d 77 f7 e8 7f 5b 77 f7 fb 65 48 8b 05 56 97 f2 75 <48> 8b 70 08 40 f6 c6 3f 74 0b 4c 89 f7 5b 41 5e e9 51 f4 5d f7 48
RSP: 0018:ffffc90003ec7f08 EFLAGS: 00000286
RAX: ffff88807b349dc0 RBX: 000000000000000f RCX: 74f9624b6b078200
RDX: dffffc0000000000 RSI: ffffffff8a6bffe0 RDI: ffffffff8abf14a0
RBP: ffffc90003ec7f48 R08: dffffc0000000000 R09: fffffbfff1bfd1a6
R10: fffffbfff1bfd1a6 R11: 1ffffffff1bfd1a5 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90003ec7f58 R15: 0000000000000000
FS:  00005555596573c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f845d7ece60 CR3: 000000007a1cc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_syscall_64+0x24/0xa0 arch/x86/entry/common.c:77
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f845d7ece69
Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25
RSP: 002b:00007fff744bd200 EFLAGS: 00000206 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f845d7ece69
RDX: 00007fff744bd200 RSI: 00007fff744bd330 RDI: 0000000000000021
RBP: 0000000000000000 R08: 00007f845d78a990 R09: 00007f845d78a990
R10: 0000000000000000 R11: 0000000000000206 R12: 00007f845d824165
R13: 0000000000000003 R14: 00007fff744bd7f0 R15: 0000000000000000
 </TASK>

Crashes (3909):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/30 15:44 linux-6.1.y 7e69c33e4858 fc9d8ee5 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/22 03:49 linux-6.1.y 58485ff1a74f d6cdfb8a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/20 07:10 linux-6.1.y 58485ff1a74f ed3e87f7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/12 11:41 linux-6.1.y 58485ff1a74f 98683f8f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/06 06:30 linux-6.1.y 58485ff1a74f 6b6b5f21 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/01 07:28 linux-6.1.y da3c5173c55f 3d2f584d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/25 07:49 linux-6.1.y da3c5173c55f ed351ea7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/25 05:03 linux-6.1.y da3c5173c55f ed351ea7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/24 21:47 linux-6.1.y da3c5173c55f ed351ea7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/11 19:58 linux-6.1.y 02b72ccb5f9d 77908e5f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/04/26 13:20 linux-6.1.y 535ec20c5027 c6b4fb39 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/04/12 21:52 linux-6.1.y 420102835862 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/04/12 18:58 linux-6.1.y 420102835862 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/31 15:40 linux-6.1.y 8e60a714ba3b d3999433 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2025/03/30 17:42 linux-6.1.y 8e60a714ba3b d3999433 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/28 07:37 linux-6.1.y 344a09659766 6c09fb82 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/27 09:33 linux-6.1.y 344a09659766 20510e88 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/27 07:30 linux-6.1.y 344a09659766 20510e88 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/26 16:02 linux-6.1.y 344a09659766 89d30d73 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/24 16:35 linux-6.1.y 344a09659766 875573af .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/22 13:29 linux-6.1.y 344a09659766 c6512ef7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/21 16:02 linux-6.1.y 344a09659766 62330552 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/02/09 08:53 linux-6.1.y 0cbb5f65e52f ef44b750 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2025/02/02 13:21 linux-6.1.y 0cbb5f65e52f 568559e4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/01/23 09:48 linux-6.1.y f4f677285b38 a44b0418 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2025/01/09 03:03 linux-6.1.y 7dc732d24ff7 f3558dbf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2025/01/01 02:51 linux-6.1.y 563edd786f0a d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2024/12/06 16:35 linux-6.1.y e4d90d63d385 946d28f0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/12/09 00:13 linux-6.1.y 6c6a6c7e211c 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/28 13:54 linux-6.1.y da3c5173c55f 874a1386 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/05/27 12:58 linux-6.1.y da3c5173c55f 874a1386 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/04/18 16:12 linux-6.1.y 420102835862 2a20f901 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/04/15 00:26 linux-6.1.y 420102835862 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/04/14 13:06 linux-6.1.y 420102835862 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/04/12 23:25 linux-6.1.y 420102835862 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/03/15 23:29 linux-6.1.y 344a09659766 e2826670 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2025/02/23 12:54 linux-6.1.y 3a8358583626 d34966d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/08/27 05:06 linux-6.1.y cd363bb9548e 7ba13a15 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/08/01 08:17 linux-6.1.y d2a6dc4eaf6d 2a0d0f29 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/19 20:25 linux-6.1.y 58485ff1a74f ed3e87f7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/06/05 19:43 linux-6.1.y 58485ff1a74f 6b6b5f21 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/31 17:07 linux-6.1.y da3c5173c55f 3d2f584d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/25 12:44 linux-6.1.y da3c5173c55f ed351ea7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/05 06:18 linux-6.1.y b6736e03756f b0714e37 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/05 00:00 linux-6.1.y b6736e03756f b0714e37 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/04 13:27 linux-6.1.y b6736e03756f b0714e37 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/05/03 23:04 linux-6.1.y b6736e03756f b0714e37 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/04/03 13:17 linux-6.1.y 8e60a714ba3b 996a9618 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2025/03/17 04:21 linux-6.1.y 344a09659766 e2826670 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/02/27 16:06 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2025/01/26 18:49 linux-6.1.y 75cefdf153f5 9fbd772e .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/01/26 16:06 linux-6.1.y 75cefdf153f5 9fbd772e .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/01/26 13:33 linux-6.1.y 75cefdf153f5 9fbd772e .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/01/07 00:25 linux-6.1.y 7dc732d24ff7 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/19 01:12 linux-6.1.y fa74641fb6b9 3bb7af1d .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2025/03/16 01:25 linux-6.1.y 344a09659766 e2826670 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/03/13 04:02 linux-6.1.y 1cc3fcf63192 5205ef30 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
* Struck through repros no longer work on HEAD.