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===================================================== BUG: KMSAN: uninit-value in expire_timers+0x3d3/0x650 kernel/time/timer.c:1459 expire_timers+0x3d3/0x650 kernel/time/timer.c:1459 __run_timers+0x6a4/0xa30 kernel/time/timer.c:1734 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1747 __do_softirq+0x1c9/0x6ec kernel/softirq.c:558 run_ksoftirqd+0x20/0x40 kernel/softirq.c:920 smpboot_thread_fn+0x4c7/0x980 kernel/smpboot.c:164 kthread+0x66b/0x780 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 Local variable pmde.sroa.0 created at: page_vma_mapped_walk+0xcf/0x35a0 mm/page_vma_mapped.c:164 page_referenced_one+0x754/0xc10 mm/rmap.c:783 ===================================================== Kernel panic - not syncing: panic_on_kmsan set ... CPU: 1 PID: 17 Comm: ksoftirqd/1 Tainted: G B 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1ff/0x28e lib/dump_stack.c:106 dump_stack+0x25/0x28 lib/dump_stack.c:113 panic+0x44f/0xdeb kernel/panic.c:232 kmsan_report+0x2e9/0x2f0 mm/kmsan/report.c:200 __msan_warning+0xb4/0x100 mm/kmsan/instrumentation.c:224 expire_timers+0x3d3/0x650 kernel/time/timer.c:1459 __run_timers+0x6a4/0xa30 kernel/time/timer.c:1734 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1747 __do_softirq+0x1c9/0x6ec kernel/softirq.c:558 run_ksoftirqd+0x20/0x40 kernel/softirq.c:920 smpboot_thread_fn+0x4c7/0x980 kernel/smpboot.c:164 kthread+0x66b/0x780 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 Kernel Offset: disabled Rebooting in 86400 seconds..
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021/11/10 07:07 | https://github.com/google/kmsan.git master | a3e5c559028e | 55fa030c | .config | console log | report | info | ci-upstream-kmsan-gce | KMSAN: uninit-value in expire_timers |