syzbot


INFO: rcu detected stall in corrupted (4)

Status: upstream: reported C repro on 2020/09/04 18:49
Subsystems: bpf
[Documentation on labels]
Reported-by: syzbot+aa7d098bd6fa788fae8e@syzkaller.appspotmail.com
First crash: 1327d, last: 5d11h
Cause bisection: introduced by (bisect log) :
commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

  tc: Add support for configuring the taprio scheduler

Crash: no output from test machine (log)
Repro: C syz .config
  
Fix bisection the fix commit could be any of (bisect log):
  0f091e43310f netlabel: remove unused param from audit_log_format()
  a729b8e6ec3d Merge branch 'fixes-for-yt8511-phy-driver'
  
Discussions (4)
Title Replies (including bot) Last reply
[syzbot] Monthly bpf report (Apr 2024) 0 (1) 2024/04/11 06:54
[syzbot] Monthly net report (Dec 2023) 0 (1) 2023/12/27 09:18
[syzbot] Monthly net report (Nov 2023) 5 (6) 2023/11/28 15:05
INFO: rcu detected stall in corrupted (4) 2 (3) 2021/03/05 22:27
Similar bugs (14)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in corrupted origin:upstream C 140 6h36m 404d 0/3 upstream: reported C repro on 2023/03/13 04:03
android-414 INFO: rcu detected stall in corrupted C 3 1764d 1837d 0/1 public: reported C repro on 2019/04/10 16:04
android-49 INFO: rcu detected stall in corrupted C 27 1648d 1833d 0/3 public: reported C repro on 2019/04/14 00:00
upstream INFO: rcu detected stall in corrupted (3) kernel C done 1 1852d 1848d 0/26 closed as invalid on 2019/03/30 00:13
linux-4.14 INFO: rcu detected stall in corrupted (2) C error 4 1407d 1568d 0/1 upstream: reported C repro on 2020/01/04 08:54
upstream INFO: rcu detected stall in corrupted net syz 1 2161d 2160d 8/26 fixed on 2018/07/09 18:05
linux-4.14 INFO: rcu detected stall in corrupted C done 3 1681d 1703d 1/1 fixed on 2019/12/05 23:59
linux-4.19 INFO: rcu detected stall in corrupted C error 2 821d 1528d 0/1 upstream: reported C repro on 2020/02/13 05:06
upstream INFO: rcu detected stall in corrupted (2) kernel syz 1 2092d 2092d 0/26 closed as invalid on 2018/07/29 11:55
linux-5.15 INFO: rcu detected stall in corrupted origin:lts-only C error 4 35d 180d 0/3 upstream: reported C repro on 2023/10/23 02:41
android-5-15 BUG: soft lockup in corrupted origin:lts C 6 3h21m 9d07h 0/2 upstream: reported C repro on 2024/04/11 09:01
upstream BUG: workqueue lockup (5) kernel C done 3944 2h02m 1557d 0/26 upstream: reported C repro on 2020/01/14 22:04
linux-4.14 BUG: soft lockup in corrupted C error 12 628d 1112d 0/1 upstream: reported C repro on 2021/04/04 06:30
linux-4.19 BUG: soft lockup in corrupted C error 3 657d 845d 0/1 upstream: reported C repro on 2021/12/26 20:46
Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/02/17 11:32 12m retest repro upstream report log
2023/11/05 14:11 48m retest repro bpf OK log
2023/11/05 14:31 12m retest repro upstream report log
Fix bisection attempts (8)
Created Duration User Patch Repo Result
2021/05/31 08:09 28m bisect fix net-next-old job log (2)
2021/05/01 07:17 22m bisect fix net-next-old job log (0) log
2021/04/01 06:52 24m bisect fix net-next-old job log (0) log
2021/03/01 04:23 23m bisect fix net-next-old job log (0) log
2021/02/01 15:30 0m bisect fix net-next-old error job log (0)
2020/12/07 14:25 25m bisect fix net-next-old job log (0) log
2020/11/07 05:27 26m bisect fix net-next-old job log (0) log
2020/10/07 17:56 26m bisect fix net-next-old job log (0) log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=8797, q=21 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294962545-4294952042), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g8797 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:27776 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0xf15/0x5c70 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6828
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2572
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5181 Comm: syz-executor117 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:104 [inline]
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5750 [inline]
RIP: 0010:lock_acquire+0x165/0x540 kernel/locking/lockdep.c:5719
Code: 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 91 03 00 00 8b 92 d4 0a 00 00 85 d2 0f 85 d6 00 00 00 9c 8f 44 24 08 48 8b 6c 24 08 <fa> 48 c7 c7 00 ba 0c 8b e8 9e 0b 67 09 48 89 e8 45 89 e0 44 89 ea
RSP: 0018:ffffc9000373fe08 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 1ffff920006e7fc3 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8b6e8820 RDI: ffff888022d564d4
RBP: 0000000000000246 R08: 0000000000000000 R09: fffffbfff1f3cdf2
R10: ffffffff8f9e6f97 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8d7b08e0 R15: 0000000000000000
FS:  000055555ad6f3c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000280 CR3: 000000002abec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 rcu_read_lock include/linux/rcupdate.h:750 [inline]
 __task_pid_nr_ns+0x3f/0x500 kernel/pid.c:510
 task_tgid_vnr include/linux/pid.h:294 [inline]
 __do_sys_getpid+0x1d/0x30 kernel/sys.c:960
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f9876dad387
Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d 52 0f 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:00007ffcabd1cf48 EFLAGS: 00000206 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 00007ffcabd1d0b0 RCX: 00007f9876dad387
RDX: 00007ffcabd1cf80 RSI: 00007ffcabd1d0b0 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000000235ab
R13: 00007ffcabd1d538 R14: 00007ffcabd1d590 R15: 00007ffcabd1d580
 </TASK>

Crashes (416):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/08 05:12 upstream fe46a7dd189e ca620dd8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in corrupted
2024/04/07 05:32 upstream 480e035fc4c7 ca620dd8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in corrupted
2024/04/01 23:44 upstream fe46a7dd189e 6baf5069 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/03/25 02:57 upstream fe46a7dd189e 0ea90952 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/03/19 06:20 upstream fe46a7dd189e baa80228 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/03/16 15:27 upstream fe46a7dd189e d615901c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2024/03/15 15:24 upstream fe46a7dd189e d615901c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2024/03/04 23:47 upstream 90d35da658da 3717835d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/03/02 08:25 upstream 17ba56605bfd 25905f5d .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2024/03/02 08:00 upstream 17ba56605bfd 25905f5d .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/02/28 00:22 upstream 45ec2f5f6ed3 05e69c83 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/02/03 10:04 upstream 6897cea71837 60bf9982 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in corrupted
2024/01/31 10:22 upstream 2a6526c4f389 373b66cd .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/01/28 11:43 upstream 8a696a29c690 cc4a4020 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/01/28 06:24 upstream 8a696a29c690 cc4a4020 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in corrupted
2024/01/25 11:51 upstream 443b349019f2 1e153dc8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/01/22 06:24 upstream 4fbbed787267 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2024/01/21 18:05 upstream 7a396820222d 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2024/01/13 20:53 upstream 052d534373b7 551587c1 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2024/01/01 20:39 upstream 610a9b8f49fb fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in corrupted
2023/12/27 22:15 upstream fbafc3e621c3 fb427a07 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/12/19 15:32 upstream 2cf4f94d8e86 3ad490ea .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2023/12/14 12:56 upstream 5bd7ef53ffe5 3222d10c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2023/12/06 20:29 upstream bee0e7762ad2 e3299f55 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/11/15 13:23 upstream c42d9eeef8e5 cb976f63 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2023/11/12 13:54 upstream 1b907d050735 6d6dbf8a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/11/11 15:00 upstream ac347a0655db 6d6dbf8a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/11/09 00:27 upstream 305230142ae0 df3908d6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2023/10/22 14:11 upstream 1acfd2bd3f0d 361b23dc .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/10/20 18:00 upstream ce55c22ec8b2 a42250d2 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2023/09/21 19:46 upstream 42dc814987c1 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in corrupted
2023/07/23 23:39 upstream c2782531397f 27cbe77f .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: rcu detected stall in corrupted
2024/04/11 23:15 net f99c5f563c17 478efa7f .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/04/07 11:28 net f99c5f563c17 ca620dd8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/03/24 19:53 net f99c5f563c17 0ea90952 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/03/22 13:42 net f99c5f563c17 7a239ce7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/03/22 10:40 net f99c5f563c17 7a239ce7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/03/21 18:49 net 3201de46a201 6753db5c .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/01/16 17:50 net 915805b50585 2a7bcc7f .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in corrupted
2024/03/22 14:33 net-next 237bb5f7f7f5 7a239ce7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in corrupted
2024/03/22 10:39 net-next 237bb5f7f7f5 7a239ce7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in corrupted
2024/03/21 18:48 net-next 237bb5f7f7f5 6753db5c .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in corrupted
2024/01/16 14:02 net-next 3e7aeb78ab01 2a7bcc7f .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in corrupted
2024/01/26 17:41 linux-next 01af33cc9894 cc4a4020 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in corrupted
2024/01/24 21:46 linux-next 8bf1262c53f5 1e153dc8 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in corrupted
2023/12/30 18:19 linux-next 39676dfe5233 fb427a07 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in corrupted
2023/11/26 12:44 linux-next 8c9660f65153 5b429f39 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in corrupted
2023/11/16 17:35 linux-next f31817cbcf48 cb976f63 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in corrupted
2024/04/15 05:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci b5d2afe8745b c8349e48 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: rcu detected stall in corrupted
2024/04/05 11:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 0ee3535e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: rcu detected stall in corrupted
2020/08/31 18:45 net-next-old 0f091e43310f d5a3ae1f .config console log report syz C ci-upstream-net-kasan-gce
2024/03/19 13:44 upstream fe46a7dd189e e104824c .config console log report syz [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: rcu detected stall in corrupted
2023/12/25 07:54 upstream 861deac3b092 fb427a07 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/10/15 21:41 upstream 9a3dad63edbe 6388bc36 .config strace log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in corrupted
2023/10/04 06:37 upstream cbf3a2cb156a 65faba36 .config strace log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in corrupted
2023/01/29 14:58 upstream c96618275234 9dfcf09c .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in corrupted
2023/11/12 16:49 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 3fec323339a4 d80eec66 .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-riscv64 INFO: rcu detected stall in corrupted
2023/10/16 15:53 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 3fec323339a4 f757a323 .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-riscv64 INFO: rcu detected stall in corrupted
2023/09/28 05:49 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 9f564b92cf6d c2ab1e5d .config console log report syz [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-riscv64 INFO: rcu detected stall in corrupted
2021/01/02 05:37 upstream eda809aef534 79264ae3 .config console log report syz ci-upstream-kasan-gce-root
2021/10/28 02:57 bpf 440ffcdd9db4 373bf66b .config console log report syz C ci-upstream-bpf-kasan-gce INFO: rcu detected stall in corrupted
* Struck through repros no longer work on HEAD.