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================================================================== BUG: KCSAN: data-race in snd_rawmidi_poll / snd_rawmidi_transmit read-write to 0xffff88813ac14b78 of 8 bytes by task 2979 on cpu 0: __snd_rawmidi_transmit_ack sound/core/rawmidi.c:1255 [inline] snd_rawmidi_transmit+0x2a7/0x390 sound/core/rawmidi.c:1314 snd_vmidi_output_work+0xf1/0x200 sound/core/seq/seq_virmidi.c:144 process_one_work+0x3e1/0x950 kernel/workqueue.c:2272 worker_thread+0x635/0xb90 kernel/workqueue.c:2418 kthread+0x1fd/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read to 0xffff88813ac14b78 of 8 bytes by task 25811 on cpu 1: snd_rawmidi_ready sound/core/rawmidi.c:102 [inline] snd_rawmidi_poll+0x1ce/0x210 sound/core/rawmidi.c:1506 vfs_poll include/linux/poll.h:90 [inline] do_select+0x8e4/0xf30 fs/select.c:534 core_sys_select+0x41f/0x670 fs/select.c:677 do_pselect fs/select.c:759 [inline] __do_sys_pselect6+0x1bf/0x220 fs/select.c:800 __se_sys_pselect6 fs/select.c:791 [inline] __x64_sys_pselect6+0x74/0x80 fs/select.c:791 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 25811 Comm: syz-executor.3 Not tainted 5.10.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/11/23 11:37 | upstream | 418baf2c28f3 | 0d27f508 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/10/28 19:38 | upstream | ed8780e3f2ec | f24824d3 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/23 23:15 | upstream | c9c9e6a49f89 | 54289b08 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/23 08:51 | upstream | 805c6d3c1921 | 287cd75a | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/21 21:09 | upstream | 98477740630f | 9e1fa68e | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/20 04:01 | upstream | 325d0eab4f31 | 53ce8104 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/16 17:09 | upstream | fc4f28bb3daf | 77507d02 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/16 11:24 | upstream | fc4f28bb3daf | 18d7d030 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/16 06:18 | upstream | fc4f28bb3daf | 18d7d030 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/16 00:19 | upstream | fc4f28bb3daf | 18d7d030 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/09/14 01:34 | upstream | 84b134997212 | 2d3cdd63 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/09/12 13:02 | upstream | 729e3d091984 | 21d289c2 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/09/08 19:49 | upstream | 6f6a73c8b715 | abf9ba4f | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/31 09:55 | upstream | f75aef392f86 | d5a3ae1f | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/22 20:41 | upstream | c3d8f220d012 | 1da71ab0 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/19 12:49 | upstream | 18445bf405cb | db787902 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/19 01:27 | upstream | 18445bf405cb | e1c29030 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/16 18:48 | upstream | 2cc3c4b3c2e9 | 5ce13532 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/15 16:11 | upstream | 410520d07f5c | 5ce13532 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/13 21:08 | upstream | 990f227371a4 | ee7cb8b6 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/13 12:00 | upstream | fb893de323e2 | ee7cb8b6 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/08/13 00:39 | upstream | fb893de323e2 | bc15f7db | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/30 23:17 | upstream | e2c46b5762c6 | 8df85ed9 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/27 16:30 | upstream | 92ed30191993 | cb93dc6a | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/26 17:43 | upstream | 04300d66f0a0 | 51265195 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/20 09:38 | upstream | 5714ee50bb43 | 8caeeeb7 | .config | console log | report | ci2-upstream-kcsan-gce |