syzbot

 sign-in | mailing list | source | docs
🐞 Open [380] 🐞 Fixed [51] 🐞 Invalid [140] ⬇ Missing Backports [39] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

INFO: rcu detected stall in corrupted

Status: upstream: reported C repro on 2023/03/13 04:03
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+675efd00db19530582a5@syzkaller.appspotmail.com
First crash: 272d, last: 12h54m
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2023/12/09 upstream (ToT) f2e8a57ee903 C [report] INFO: rcu detected stall in corrupted
▶ ▼ Similar bugs (13)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 INFO: rcu detected stall in corrupted C 3 1632d 1705d 0/1 public: reported C repro on 2019/04/10 16:04
android-49 INFO: rcu detected stall in corrupted C 27 1517d 1701d 0/3 public: reported C repro on 2019/04/14 00:00
upstream INFO: rcu detected stall in corrupted (3) kernel C done 1 1720d 1716d 0/25 closed as invalid on 2019/03/30 00:13
linux-4.14 INFO: rcu detected stall in corrupted (2) C error 4 1275d 1436d 0/1 upstream: reported C repro on 2020/01/04 08:54
upstream INFO: rcu detected stall in corrupted (4) net pci C done inconclusive 375 3d21h 1191d 0/25 upstream: reported C repro on 2020/09/04 18:49
upstream INFO: rcu detected stall in corrupted net syz 1 2029d 2029d 9/25 fixed on 2018/07/09 18:05
linux-4.14 INFO: rcu detected stall in corrupted C done 3 1549d 1571d 1/1 fixed on 2019/12/05 23:59
linux-4.19 INFO: rcu detected stall in corrupted C error 2 689d 1396d 0/1 upstream: reported C repro on 2020/02/13 05:06
upstream INFO: rcu detected stall in corrupted (2) kernel syz 1 1960d 1960d 0/25 closed as invalid on 2018/07/29 11:55
linux-5.15 INFO: rcu detected stall in corrupted origin:lts-only C error 2 32d 48d 0/3 upstream: reported C repro on 2023/10/23 02:41
upstream BUG: workqueue lockup (5) C done 2395 30m 1425d 0/25 upstream: reported C repro on 2020/01/14 22:04
linux-4.14 BUG: soft lockup in corrupted C error 12 497d 980d 0/1 upstream: reported C repro on 2021/04/04 06:30
linux-4.19 BUG: soft lockup in corrupted C error 3 525d 713d 0/1 upstream: reported C repro on 2021/12/26 20:46

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=5725, q=36 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294965868-4294955368), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g5725 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:27032 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x2d2/0x1120 kernel/rcu/tree.c:1674
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1873
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3593 Comm: syz-executor375 Not tainted 6.1.66-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:check_preemption_disabled+0x5c/0x110 lib/smp_processor_id.c:19
Code: 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5e 41 5f c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 <f7> 04 24 00 02 00 00 74 c9 49 89 f6 49 89 ff 65 4c 8b 25 0d 8f 78
RSP: 0018:ffffc90003cdfe70 EFLAGS: 00000046
RAX: 0000000080000000 RBX: 0000000000000001 RCX: 0000000080000000
RDX: ffff8880256d3b80 RSI: ffffffff8aebf620 RDI: ffffffff8b3cf480
RBP: 0000000000000001 R08: ffffffff815b3ad0 R09: fffffbfff2091e45
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
R13: ffff8880256d3b80 R14: 00000000ffffffff R15: ffffffff8d12a1e0
FS:  00005555561353c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf8bedf40 CR3: 0000000073fd2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
 lock_is_held_type+0xfd/0x180 kernel/locking/lockdep.c:5706
 __task_pid_nr_ns+0x1e9/0x450 kernel/pid.c:500
 task_tgid_vnr include/linux/sched.h:1630 [inline]
 __do_sys_getpid+0x19/0x20 kernel/sys.c:953
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4f8a58d447
Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d 92 0e 09 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 43 d8 fd ff 0f 1f 00 b8 27 00 00 00 0f 05 <c3> 0f 1f 84 00 00 00 00 00 31 f6 31 ff e9 c7 e5 02 00 0f 1f 80 00
RSP: 002b:00007ffcf8bedd48 EFLAGS: 00000206 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 00007ffcf8bedeb0 RCX: 00007f4f8a58d447
RDX: 00007ffcf8bedd80 RSI: 00007ffcf8bedeb0 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000555556135370
R13: 0000000000000000 R14: 00007ffcf8bee380 R15: 00007ffcf8bee370
 </TASK>

Crashes (71):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
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
2023/08/26 01:38 linux-6.1.y 802aacbbffe2 03d9c195 .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
2023/12/08 15:48 linux-6.1.y 6c6a6c7e211c 28b24332 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/12/01 11:19 linux-6.1.y 6ac30d748bb0 f819d6f7 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/11/18 14:42 linux-6.1.y fb2635ac69ab cb976f63 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/11/17 03:37 linux-6.1.y fb2635ac69ab cb976f63 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/11/12 13:26 linux-6.1.y fb2635ac69ab 6d6dbf8a .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/11/12 03:08 linux-6.1.y fb2635ac69ab 6d6dbf8a .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/11/12 02:23 linux-6.1.y fb2635ac69ab 6d6dbf8a .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/11/09 23:54 linux-6.1.y fb2635ac69ab 56230772 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/11/04 12:42 linux-6.1.y 4a61839152cc 500bfdc4 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/11/04 09:54 linux-6.1.y 4a61839152cc 500bfdc4 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/10/28 19:58 linux-6.1.y 32c9cdbe383c 3c418d72 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/10/28 00:26 linux-6.1.y 32c9cdbe383c 3c418d72 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/10/17 10:26 linux-6.1.y adc4d740ad9e 342b9c55 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/10/16 10:26 linux-6.1.y adc4d740ad9e f757a323 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/10/05 12:58 linux-6.1.y d23900f974e0 b7d7ff54 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/09/26 18:53 linux-6.1.y d23900f974e0 0b6a67ac .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/09/26 02:25 linux-6.1.y d23900f974e0 0b6a67ac .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/09/25 17:08 linux-6.1.y d23900f974e0 0b6a67ac .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/09/25 08:15 linux-6.1.y d23900f974e0 0b6a67ac .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/09/10 06:45 linux-6.1.y 59b13c2b647e 6654cf89 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/09/01 22:19 linux-6.1.y a2943d2d9a00 696ea0d2 .config console log report syz [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
2023/12/10 05:25 linux-6.1.y 6c6a6c7e211c 28b24332 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/12/08 06:30 linux-6.1.y c6114c845984 28b24332 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/11/18 21:50 linux-6.1.y fb2635ac69ab cb976f63 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/11/18 00:36 linux-6.1.y fb2635ac69ab cb976f63 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/11/10 17:09 linux-6.1.y fb2635ac69ab 45e9b83e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/10/31 00:03 linux-6.1.y 32c9cdbe383c b5729d82 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/10/30 01:09 linux-6.1.y 32c9cdbe383c 3c418d72 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/10/19 00:16 linux-6.1.y adc4d740ad9e 342b9c55 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/08/29 16:04 linux-6.1.y 024f76bca9d0 7ba13a15 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/08/08 00:34 linux-6.1.y 52a953d0934b b1b6ae3d .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/07/10 10:02 linux-6.1.y 61fd484b2cf6 668cb1fa .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/07/07 13:12 linux-6.1.y 61fd484b2cf6 22ae5830 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/06/29 05:13 linux-6.1.y a1c449d00ff8 ca69c785 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/06/25 05:47 linux-6.1.y e84a4e368abe 79782afc .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/06/24 01:25 linux-6.1.y e84a4e368abe 79782afc .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/06/12 00:00 linux-6.1.y 2f3918bc53fb 49519f06 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/06/11 15:51 linux-6.1.y 2f3918bc53fb 49519f06 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/06/04 11:43 linux-6.1.y d2869ace6eeb a4ae4f42 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/29 04:30 linux-6.1.y a343b0dd87b4 cf184559 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/05/28 19:53 linux-6.1.y a343b0dd87b4 cf184559 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/23 22:55 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/23 19:01 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/23 02:41 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/22 09:43 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/05/14 23:55 linux-6.1.y bf4ad6fa4e53 2b9ba477 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/04/02 18:55 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/03/21 12:38 linux-6.1.y 7eaef76fbc46 7939252e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/03/19 12:43 linux-6.1.y 7eaef76fbc46 7939252e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf INFO: rcu detected stall in corrupted
2023/03/19 07:21 linux-6.1.y 7eaef76fbc46 7939252e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/03/19 02:55 linux-6.1.y 7eaef76fbc46 7939252e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: rcu detected stall in corrupted
2023/03/16 13:23 linux-6.1.y 6449a0ba6843 18b58603 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf 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
2023/08/29 13:58 linux-6.1.y 024f76bca9d0 7ba13a15 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/07/20 07:44 linux-6.1.y a456e1743881 4547cdf9 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/07/05 12:09 linux-6.1.y 0f4ac6b4c5f0 80298b6f .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/06/03 17:00 linux-6.1.y d2869ace6eeb a4ae4f42 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/05/25 07:47 linux-6.1.y a343b0dd87b4 4bce1a3e .config console log report syz [disk image] [vmlinux] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/05/23 19:38 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/05/23 12:03 linux-6.1.y fa74641fb6b9 4bce1a3e .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/05/13 00:44 linux-6.1.y bf4ad6fa4e53 ecca8a24 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/04/29 21:24 linux-6.1.y ca1c9012c941 62df2017 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/04/03 02:51 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/03/30 06:46 linux-6.1.y e3a87a10f259 f325deb0 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/03/26 01:19 linux-6.1.y e3a87a10f259 fbf0499a .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
2023/03/15 22:59 linux-6.1.y 6449a0ba6843 18b58603 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: rcu detected stall in corrupted
* Struck through repros no longer work on HEAD.