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================================================================== BUG: KCSAN: data-race in p9_conn_cancel / p9_poll_workfn write to 0xffff888132658c28 of 4 bytes by task 10836 on cpu 0: p9_conn_cancel+0x89/0x400 net/9p/trans_fd.c:199 p9_write_work+0x3ac/0x750 net/9p/trans_fd.c:522 process_one_work kernel/workqueue.c:3267 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3348 worker_thread+0x526/0x730 kernel/workqueue.c:3429 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read to 0xffff888132658c28 of 4 bytes by task 21991 on cpu 1: p9_poll_mux net/9p/trans_fd.c:625 [inline] p9_poll_workfn+0xc0/0x420 net/9p/trans_fd.c:1177 process_one_work kernel/workqueue.c:3267 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3348 worker_thread+0x526/0x730 kernel/workqueue.c:3429 kthread+0x1d1/0x210 kernel/kthread.c:388 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x00000000 -> 0xffffffea Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 21991 Comm: kworker/1:3 Not tainted 6.9.0-rc6-syzkaller-00232-gddb4c3f25b7b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events p9_poll_workfn ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/05/04 01:35 | upstream | ddb4c3f25b7b | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in p9_conn_cancel / p9_poll_workfn |