syzbot


KCSAN: data-race in ondemand_readahead / ondemand_readahead (11)

Status: auto-obsoleted due to no activity on 2024/07/30 21:57
Subsystems: mm fs
[Documentation on labels]
Reported-by: syzbot+701803384e5bfe149765@syzkaller.appspotmail.com
First crash: 212d, last: 134d
Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (4) fs mm 1 1308d 1308d 0/28 auto-closed as invalid on 2021/05/21 19:40
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (5) mm fs 2 1263d 1269d 0/28 auto-closed as invalid on 2021/07/05 00:47
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (2) fs mm 201 1385d 1546d 0/28 auto-closed as invalid on 2021/03/05 09:30
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (10) fs mm 147 252d 342d 0/28 auto-obsoleted due to no activity on 2024/04/11 01:33
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (8) fs mm 1 905d 905d 0/28 auto-closed as invalid on 2022/06/27 21:27
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead fs mm 44 1610d 1823d 0/28 closed as invalid on 2020/06/18 14:24
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (9) mm fs 3 810d 815d 0/28 auto-closed as invalid on 2022/10/01 03:27
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (3) fs mm 1 1344d 1344d 0/28 auto-closed as invalid on 2021/04/14 20:49
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (7) fs mm 5 968d 1031d 0/28 auto-closed as invalid on 2022/04/26 07:02
upstream KCSAN: data-race in ondemand_readahead / ondemand_readahead (6) fs mm 17 1134d 1204d 0/28 auto-closed as invalid on 2021/11/11 03:01

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

read to 0xffff888114884484 of 4 bytes by task 1575 on cpu 1:
 ondemand_readahead+0x15d/0x6b0 mm/readahead.c:581
 page_cache_sync_ra+0xe0/0xf0 mm/readahead.c:696
 page_cache_sync_readahead include/linux/pagemap.h:1306 [inline]
 filemap_get_pages+0x252/0xfb0 mm/filemap.c:2529
 filemap_splice_read+0x360/0x920 mm/filemap.c:2894
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x26c/0x670 fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0xd7/0x150 fs/splice.c:1233
 do_sendfile+0x3ab/0x950 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64 fs/read_write.c:1348 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348
 x64_sys_call+0x2c9f/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

write to 0xffff888114884484 of 4 bytes by task 1582 on cpu 0:
 ondemand_readahead+0x30b/0x6b0 mm/readahead.c:648
 page_cache_sync_ra+0xe0/0xf0 mm/readahead.c:696
 page_cache_sync_readahead include/linux/pagemap.h:1306 [inline]
 filemap_get_pages+0x252/0xfb0 mm/filemap.c:2529
 filemap_splice_read+0x360/0x920 mm/filemap.c:2894
 do_splice_read fs/splice.c:985 [inline]
 splice_direct_to_actor+0x26c/0x670 fs/splice.c:1089
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0xd7/0x150 fs/splice.c:1233
 do_sendfile+0x3ab/0x950 fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64 fs/read_write.c:1348 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348
 x64_sys_call+0x2c9f/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000004 -> 0x00000005

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 1582 Comm: syz.3.8866 Tainted: G        W          6.10.0-rc6-syzkaller-00051-g1dfe225e9af5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
==================================================================

Crashes (98):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/02 21:57 upstream 1dfe225e9af5 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/07/01 13:15 upstream 22a40d14b572 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/27 20:01 upstream 66e55ff12e73 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/27 00:28 upstream 55027e689933 c6d33a01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/26 02:30 upstream 55027e689933 dec8bc94 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/24 19:43 upstream 626737a5791b 215eef4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/24 07:02 upstream f2661062f16b edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/23 16:12 upstream 7c16f0a4ed1c edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/23 05:44 upstream 563a50672d8a edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/19 18:56 upstream e5b3efbe1ab1 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/19 00:39 upstream 3d54351c64e8 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/18 11:38 upstream 14d7c92f8df9 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/18 09:56 upstream 14d7c92f8df9 ce6011bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/17 21:59 upstream 6226e74900d7 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/17 18:35 upstream 6ba59ff42279 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/17 11:44 upstream 6ba59ff42279 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/17 03:07 upstream 6ba59ff42279 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/16 20:38 upstream b5beaa44747b f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/16 16:27 upstream a3e18a540541 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/16 13:48 upstream a3e18a540541 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/16 12:35 upstream a3e18a540541 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/16 04:35 upstream a3e18a540541 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/16 02:04 upstream 08a6b55aa0c6 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/15 18:34 upstream 44ef20baed8e f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/15 16:44 upstream 44ef20baed8e f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/15 11:07 upstream 44ef20baed8e f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/15 01:55 upstream c286c21ff942 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/15 00:32 upstream 0cac73eb3875 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/14 17:38 upstream d20f6b3d747c 8d849073 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/14 06:30 upstream d20f6b3d747c a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/13 13:13 upstream 2ccbdf43d5e7 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/12 17:37 upstream cea2a26553ac f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/12 04:46 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/11 13:48 upstream 83a7eefedc9b b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/10 19:56 upstream 83a7eefedc9b 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/06 07:04 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/04 12:10 upstream 2ab795141095 11f2afa5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/04 06:32 upstream f06ce441457d a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/06/01 02:57 upstream d8ec19857b09 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/26 08:22 upstream 54f71b0369c9 a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/25 05:59 upstream 02c438bbfffe a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/24 05:49 upstream 2a8120d7b482 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/23 10:41 upstream 2a8120d7b482 4c2072ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/22 11:03 upstream 2a8120d7b482 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/19 05:27 upstream 0450d2083be6 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/18 01:00 upstream 7ee332c9f12b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/18 01:00 upstream 7ee332c9f12b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/17 08:51 upstream ea5f6ad9ad96 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/16 17:44 upstream 3c999d1ae3c7 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/16 05:48 upstream 8c06da67d0bd ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/15 04:21 upstream b850dc206a57 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/15 04:21 upstream b850dc206a57 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/13 20:00 upstream 8815da98e06a 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/13 08:31 upstream a38297e3fb01 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/13 08:04 upstream a38297e3fb01 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/05/11 08:56 upstream cf87f46fd34d 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/24 09:56 upstream 9d1ddab261f3 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/21 19:25 upstream 48cf398f15fc af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/20 19:35 upstream 13a2e429f644 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/19 19:44 upstream 3cdb45594619 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/19 14:44 upstream 2668e3ae2ef3 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/18 02:53 upstream 4b6b51322118 acc528cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/17 14:31 upstream 96fca68c4fbf acc528cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/16 15:49 upstream 96fca68c4fbf 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/16 04:16 upstream 96fca68c4fbf 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
2024/04/16 01:11 upstream 0bbac3facb5d b9af7e61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in ondemand_readahead / ondemand_readahead
* Struck through repros no longer work on HEAD.