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================================================================== BUG: KCSAN: data-race in snd_pcm_oss_change_params_locked / snd_pcm_oss_poll read to 0xffff88801168f700 of 1 bytes by task 18094 on cpu 1: snd_pcm_oss_change_params_locked+0x1c9f/0x2600 sound/core/oss/pcm_oss.c:981 snd_pcm_oss_make_ready_locked sound/core/oss/pcm_oss.c:1166 [inline] snd_pcm_oss_read1 sound/core/oss/pcm_oss.c:1494 [inline] snd_pcm_oss_read+0x1a8/0x8a0 sound/core/oss/pcm_oss.c:2742 do_loop_readv_writev fs/read_write.c:761 [inline] do_iter_read+0x2be/0x4b0 fs/read_write.c:803 vfs_readv fs/read_write.c:921 [inline] do_readv+0x13d/0x280 fs/read_write.c:958 __do_sys_readv fs/read_write.c:1049 [inline] __se_sys_readv fs/read_write.c:1046 [inline] __x64_sys_readv+0x41/0x50 fs/read_write.c:1046 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff88801168f700 of 1 bytes by task 18083 on cpu 0: snd_pcm_oss_poll+0x417/0x510 sound/core/oss/pcm_oss.c:2830 vfs_poll include/linux/poll.h:90 [inline] do_pollfd fs/select.c:869 [inline] do_poll fs/select.c:917 [inline] do_sys_poll+0x611/0xb80 fs/select.c:1011 __do_sys_ppoll fs/select.c:1111 [inline] __se_sys_ppoll+0x169/0x1b0 fs/select.c:1091 __x64_sys_ppoll+0x63/0x70 fs/select.c:1091 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: 0 PID: 18083 Comm: syz-executor.0 Not tainted 5.10.0-rc3-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/11/14 14:55 | upstream | f01c30de86f1 | 1bf9a662 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/11/02 04:33 | upstream | 31f020064f9d | 8bc4594f | .config | console log | report | info | ci2-upstream-kcsan-gce |