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================================================================== BUG: KCSAN: data-race in p9_conn_cancel / p9_poll_workfn write to 0xffff8881152eae28 of 4 bytes by task 3335 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:3231 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3393 kthread+0x1d1/0x210 kernel/kthread.c:389 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 0xffff8881152eae28 of 4 bytes by task 3338 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:3231 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3393 kthread+0x1d1/0x210 kernel/kthread.c:389 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 -> 0xffffffe0 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3338 Comm: kworker/1:4 Not tainted 6.11.0-rc7-syzkaller-00135-gb7718454f937 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events p9_poll_workfn ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/14 18:14 | upstream | b7718454f937 | c7e35043 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in p9_conn_cancel / p9_poll_workfn | ||
2024/08/31 06:58 | upstream | 20371ba12063 | 1eda0d14 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in p9_conn_cancel / p9_poll_workfn |