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KCSAN: data-race in fifo_open / wait_for_partner (2)

Status: auto-obsoleted due to no activity on 2023/07/06 11:38
Subsystems: fs
[Documentation on labels]
First crash: 761d, last: 364d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in fifo_open / wait_for_partner (5) fs 4 28d 59d 0/26 moderation: reported on 2024/04/01 04:07
upstream KCSAN: data-race in fifo_open / wait_for_partner (3) fs 3 280d 325d 0/26 auto-obsoleted due to no activity on 2023/09/28 09:43
upstream KCSAN: data-race in fifo_open / wait_for_partner (4) fs 8 113d 172d 0/26 auto-obsoleted due to no activity on 2024/03/13 09:11
upstream KCSAN: data-race in fifo_open / wait_for_partner fs 66 808d 1270d 0/26 auto-closed as invalid on 2022/04/18 09:31

Sample crash report:
==================================================================
BUG: KCSAN: data-race in fifo_open / wait_for_partner

read-write to 0xffff888126ee9c6c of 4 bytes by task 8447 on cpu 0:
 put_pipe_info fs/pipe.c:706 [inline]
 fifo_open+0x2a6/0x5e0 fs/pipe.c:1219
 do_dentry_open+0x5b3/0x930 fs/open.c:920
 vfs_open+0x47/0x50 fs/open.c:1051
 do_open fs/namei.c:3636 [inline]
 path_openat+0x17e6/0x1d00 fs/namei.c:3791
 do_filp_open+0xf6/0x200 fs/namei.c:3818
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1356
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_open fs/open.c:1380 [inline]
 __se_sys_open fs/open.c:1376 [inline]
 __x64_sys_open+0xe6/0x110 fs/open.c:1376
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888126ee9c6c of 4 bytes by task 8449 on cpu 1:
 pipe_lock_nested fs/pipe.c:81 [inline]
 pipe_lock fs/pipe.c:90 [inline]
 wait_for_partner+0x105/0x1d0 fs/pipe.c:1086
 fifo_open+0x483/0x5e0 fs/pipe.c:1153
 do_dentry_open+0x5b3/0x930 fs/open.c:920
 vfs_open+0x47/0x50 fs/open.c:1051
 do_open fs/namei.c:3636 [inline]
 path_openat+0x17e6/0x1d00 fs/namei.c:3791
 do_filp_open+0xf6/0x200 fs/namei.c:3818
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1356
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_open fs/open.c:1380 [inline]
 __se_sys_open fs/open.c:1376 [inline]
 __x64_sys_open+0xe6/0x110 fs/open.c:1376
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00000002 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 8449 Comm: syz-executor.4 Not tainted 6.4.0-rc4-syzkaller-00078-g929ed21dfdb6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
==================================================================

Crashes (54):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/01 11:34 upstream 929ed21dfdb6 babc4389 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/05/19 02:25 upstream 2d1bcbc6cd70 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/05/17 21:12 upstream 1b66c114d161 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/05/05 21:53 upstream 7163a2111f6c de870ca5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/04/21 21:51 upstream 2af3e53a4dc0 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/04/06 14:39 upstream 99ddf2254feb 08707520 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/04/01 18:19 upstream 7b50567bdcad f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/03/19 14:44 upstream a3671bd86a97 7939252e .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/03/11 22:46 upstream 81ff855485a3 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/02/19 09:48 upstream 5e725d112e1a bcdf85f8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/01/16 05:05 upstream 5dc4c995db9e a63719e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/01/15 08:39 upstream 7c6984405241 a63719e7 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2023/01/08 12:29 upstream 9b43a525db12 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/12/16 19:40 upstream 84e57d292203 05494336 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/12/07 01:59 upstream 8ed710da2873 d88f3abb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/12/01 18:00 upstream ef4d3ea40565 e080de16 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/27 18:26 upstream faf68e3523c2 f4470a7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/25 19:29 upstream 08ad43d554ba 74a66371 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/22 15:49 upstream eb7081409f94 9da37ae8 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/19 13:25 upstream ab290eaddc4c 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/17 08:42 upstream cc675d22e422 3a127a31 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/13 04:20 upstream fef7fd48922d f42ee5d8 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/12 02:53 upstream eb037f16f7e8 f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/11/09 04:29 upstream f141df371335 5fa28208 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/10/25 23:09 upstream 1a2dcbdde82e 2159e4d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/10/25 20:27 upstream 337a0a0b63f1 45645420 .config console log report info [disk image] [vmlinux] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/10/19 11:59 upstream aae703b02f92 b31320fc .config console log report info [disk image] [vmlinux] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/10/06 19:26 upstream 833477fce7a1 80b58a42 .config console log report info [disk image] [vmlinux] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/10/04 00:42 upstream 4fe89d07dcc2 feb56351 .config console log report info [disk image] [vmlinux] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/09/04 08:07 upstream 7726d4c3e60b 28811d0a .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/09/03 04:59 upstream d895ec7938c4 49e94a20 .config console log report info [disk image] [vmlinux] ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/09/02 15:21 upstream 42e66b1cc3a0 25194605 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/08/28 21:31 upstream 8379c0b31fbc 07177916 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/08/24 23:22 upstream c40e8341e3b3 514514f6 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/08/08 15:18 upstream 4e23eeebb2e5 da700653 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/08/07 15:24 upstream 1612c382ffbd 88e3a122 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/08/05 08:07 upstream c040862bfbd9 a65a7ce9 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/28 20:33 upstream 33ea1340bafe fb95c74d .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/27 12:36 upstream 39c3c396f813 da9d0366 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/23 09:36 upstream 70664fc10c0d 22343af4 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/13 09:40 upstream b047602d579b 5d921b08 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/11 12:08 upstream 32346491ddf2 f3f217ff .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/11 06:50 upstream 32346491ddf2 b5765a15 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/08 20:41 upstream a471da3100ef b5765a15 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/08 08:36 upstream e8a4e1c1bb69 8442e655 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/07/06 20:23 upstream 9f09069cde34 bff65f44 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/06/25 22:49 upstream 0840a7914caa a371c43c .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/05/23 23:51 upstream 140e40e39a29 e7f9308d .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/05/13 10:11 upstream f3f19f939c11 7ce5a022 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/05/12 14:25 upstream feb9c5e19e91 9ad6612a .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/05/07 22:54 upstream 30c8e80f7932 e60b1103 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/04/30 23:48 upstream 57ae8a492116 2df221f6 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/04/30 11:09 upstream 8013d1d3d2e3 2df221f6 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
2022/04/30 04:47 upstream 8013d1d3d2e3 ad6b95d8 .config console log report info ci2-upstream-kcsan-gce KCSAN: data-race in fifo_open / wait_for_partner
* Struck through repros no longer work on HEAD.