syzbot


KCSAN: data-race in io_submit_sqes / io_uring_poll (4)
Status: moderation: reported on 2022/03/14 15:49
Reported-by: syzbot+494e8a731683d8eca84d@syzkaller.appspotmail.com
First crash: 142d, last: 9d10h
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in io_submit_sqes / io_uring_poll (2) 1 508d 508d 0/22 auto-closed as invalid on 2021/02/08 06:39
upstream KCSAN: data-race in io_submit_sqes / io_uring_poll (3) 55 186d 263d 0/22 auto-closed as invalid on 2021/12/27 08:47
upstream KCSAN: data-race in io_submit_sqes / io_uring_poll 2 610d 636d 0/22 auto-closed as invalid on 2020/10/29 16:22

Sample crash report:
==================================================================
BUG: KCSAN: data-race in io_submit_sqes / io_uring_poll

read-write to 0xffff888108392070 of 4 bytes by task 13756 on cpu 1:
 io_get_sqe fs/io_uring.c:7814 [inline]
 io_submit_sqes+0x1ee/0x7e0 fs/io_uring.c:7858
 __do_sys_io_uring_enter fs/io_uring.c:10810 [inline]
 __se_sys_io_uring_enter+0x2cb/0xc70 fs/io_uring.c:10736
 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:10736
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888108392070 of 4 bytes by task 13741 on cpu 0:
 io_sqring_full fs/io_uring.c:1799 [inline]
 io_uring_poll+0x8d/0x150 fs/io_uring.c:9994
 vfs_poll include/linux/poll.h:88 [inline]
 do_pollfd fs/select.c:873 [inline]
 do_poll fs/select.c:921 [inline]
 do_sys_poll+0x6d5/0xca0 fs/select.c:1015
 __do_sys_ppoll fs/select.c:1121 [inline]
 __se_sys_ppoll+0x195/0x1d0 fs/select.c:1101
 __x64_sys_ppoll+0x63/0x70 fs/select.c:1101
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00002acd -> 0x00002ad4

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 13741 Comm: syz-executor.0 Not tainted 5.18.0-rc7-syzkaller-00006-g210e04ff7681-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================

Crashes (90):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2022/05/18 09:41 upstream 210e04ff7681 744a39e2 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/24 09:17 upstream 22da5264abf4 131df97d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/23 05:54 upstream c00c5e1d157b 131df97d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/20 11:49 upstream 559089e0a93d 7d7bc738 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/19 18:45 upstream b7f73403a3e9 33fc6ed6 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/19 10:33 upstream b2d229d4ddb1 c334415e .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/18 10:14 upstream b2d229d4ddb1 8bcc32a6 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/15 17:52 upstream 028192fea1de 8bcc32a6 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/14 14:53 upstream a19944809fe9 b17b2923 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/08 20:53 upstream 1831fed55973 e22c3da3 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/08 00:05 upstream 42e7a03d3bad c6ff3e05 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/07 05:08 upstream 3e732ebf7316 53c67432 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/06 17:18 upstream 3e732ebf7316 97582466 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/05 15:44 upstream 312310928417 0127c10f .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/04 17:10 upstream 312310928417 5915c2cb .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/04 04:30 upstream 09bb8856d4a7 79a2a8fc .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/02 22:06 upstream be2d3ecedd99 79a2a8fc .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/02 11:58 upstream 88e6c0207623 79a2a8fc .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/01 16:16 upstream e8b767f5e040 79a2a8fc .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/04/01 02:46 upstream e8b767f5e040 68fc921a .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/31 14:36 upstream 787af64d05cd c4c32d8c .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/31 00:22 upstream 74164d284b29 9d49f3a7 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/30 10:12 upstream d888c83fcec7 42718dd6 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/30 08:49 upstream d888c83fcec7 6bdac766 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/29 11:57 upstream 1930a6e739c4 6bdac766 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/28 23:25 upstream ae085d7f9365 6bdac766 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/27 11:32 upstream f022814633e1 89bc8608 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/26 21:32 upstream bddac7c1e02b 89bc8608 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/26 05:14 upstream 52d543b5497c 89bc8608 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/25 13:05 upstream 34af78c4e616 89bc8608 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/25 01:49 upstream 52deda9551a0 89bc8608 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/23 04:03 upstream 3bf03b9a0839 5ff41e94 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/22 06:43 upstream eaa54b1458ca e2d91b1d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/21 07:52 upstream f443e374ae13 e2d91b1d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/20 06:01 upstream 97e9c8eb4bb1 e2d91b1d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/19 05:52 upstream 34e047aa16c0 e2d91b1d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/18 01:07 upstream 551acdc3c3d2 e2d91b1d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/17 02:53 upstream 56e337f2cf13 dfa9a8ed .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/16 16:00 upstream 56e337f2cf13 46cc3b21 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/16 02:15 upstream 56e337f2cf13 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/14 09:10 upstream 09688c0166e7 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/13 22:26 upstream f0e18b03fcaf 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/13 18:14 upstream aad611a868d1 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/12 06:30 upstream 68453767131a 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/10 17:43 upstream 1db333d9a51f 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/10 12:30 upstream 3bf7edc84a9e 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/09 17:03 upstream 330f4c53d3c2 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/08 21:30 upstream 92f90cc9fe0e 9e8eaa75 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/07 20:39 upstream ea4424be1688 7bdd8b2c .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/06 21:26 upstream dcde98da9970 7bdd8b2c .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/05 14:12 upstream ac84e82f78cb 45a13a73 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/03/05 00:38 upstream 07ebd38a0da2 45a13a73 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/11 05:07 upstream f1baf68e1383 0b33604d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/10 14:57 upstream e3c85076d7a6 0b33604d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/09 18:40 upstream f4bc5bbb5fef 0b33604d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/08 15:02 upstream 555f3d7be91a 0b33604d .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/08 12:04 upstream 555f3d7be91a a7dab638 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/07 22:27 upstream 2ade8eef993c a7dab638 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/07 08:51 upstream dfd42facf1e4 a7dab638 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/06 19:27 upstream d8ad2ce873ab a7dab638 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/06 01:14 upstream 90c9e950c0de a7dab638 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/04 10:01 upstream dcb85f85fa6f a3e470b2 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/03 20:50 upstream c36c04c2e132 30646bfe .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/03 08:25 upstream 88808fbbead4 4ebb2798 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/02/03 03:22 upstream 27bb0b18c208 4ebb2798 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/01/29 08:02 upstream 169387e2aa29 495e00c5 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/01/29 00:14 upstream df0001545b27 495e00c5 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/01/22 02:44 upstream 9b57f4589857 214351e1 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/01/18 19:46 upstream 99613159ad74 731a2d23 .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll
ci2-upstream-kcsan-gce 2022/01/05 05:36 upstream c9e6606c7fe9 0a2584dd .config log report info KCSAN: data-race in io_submit_sqes / io_uring_poll