INFO: rcu_tasks detected stalls on tasks:

Status: closed as invalid on 2026/07/06 10:21
Labels: prio:high
[Documentation on labels]
First crash: 44d, last: 43d
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ID Workflow Result Correct Bug Created Started Finished Revision
a0af0510 assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ INFO: rcu_tasks detected stalls on tasks: 2026/07/01 01:18 2026/07/01 01:18 2026/07/01 01:57 93f57954

Sample crash report:
INFO: rcu_tasks detected stalls on tasks:
ffff8880346fca80: .. nvcsw: 9/9 holdout: 1 idle_cpu: -1/1
task:syz.5.3889      state:R  running task     stack:26856 pid:22080 tgid:22079 ppid:19084  task_flags:0x400140 flags:0x00080005
Call Trace:
 <TASK>
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/30 19:39 upstream dc59e4fea9d8 00e8b0fd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu_tasks detected stalls on tasks:
2026/06/29 14:48 upstream dc59e4fea9d8 6a0c72dc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu_tasks detected stalls on tasks:
* Struck through repros no longer work on HEAD.