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================================================================== BUG: KCSAN: data-race in p9_conn_cancel / p9_poll_workfn write to 0xffff88813c87ec28 of 4 bytes by task 10042 on cpu 1: p9_conn_cancel+0x89/0x400 net/9p/trans_fd.c:200 p9_read_work+0x771/0x8d0 net/9p/trans_fd.c:407 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 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:243 read to 0xffff88813c87ec28 of 4 bytes by task 3171 on cpu 0: p9_poll_mux net/9p/trans_fd.c:626 [inline] p9_poll_workfn+0xc0/0x420 net/9p/trans_fd.c:1178 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335 worker_thread+0x526/0x730 kernel/workqueue.c:3416 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:243 value changed: 0x00000000 -> 0xfffffffb Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 3171 Comm: kworker/0:4 Not tainted 6.9.0-rc1-syzkaller-00061-g8d025e2092e2 #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/03/28 19:52 | upstream | 8d025e2092e2 | e91187ee | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in p9_conn_cancel / p9_poll_workfn |