syzbot


kernel BUG in ext4_writepages (2)

Status: upstream: reported C repro on 2022/11/27 00:51
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+611768e51a769a957b02@syzkaller.appspotmail.com
First crash: 457d, last: 13d
Cause bisection: failed (error log, bisect log)
  
Fix bisection the fix commit could be any of (bisect log):
  416c4356f372 Merge 5.10.161 into android12-5.10-lts
  0334ff98b9dd Revert "net: mdio: fix owner field for mdio buses registered using device-tree"
  
Similar bugs (9)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 kernel BUG at fs/ext4/inode.c:LINE! ext4 C error 145 357d 1231d 0/1 upstream: reported C repro on 2020/10/14 01:19
android-54 kernel BUG at fs/ext4/inode.c:LINE! ext4 C 153 2h05m 1505d 0/2 upstream: reported C repro on 2020/01/14 12:13
linux-5.15 kernel BUG in ext4_writepages origin:upstream C error 23 5h18m 351d 0/3 upstream: reported C repro on 2023/03/13 06:22
linux-4.14 kernel BUG at fs/ext4/inode.c:LINE! ext4 C 11 365d 1159d 0/1 upstream: reported C repro on 2020/12/25 03:51
linux-6.1 kernel BUG in ext4_writepages origin:upstream C 35 6h44m 351d 0/3 upstream: reported C repro on 2023/03/12 17:26
android-5-15 kernel BUG in ext4_writepages ext4 origin:upstream C error 72 12d 497d 0/2 upstream: reported C repro on 2022/10/18 14:12
android-5-10 kernel BUG in ext4_writepages C error 5 497d 658d 2/2 fixed on 2022/11/16 18:44
android-6-1 kernel BUG in ext4_writepages origin:upstream C error 25 2d13h 267d 0/2 upstream: reported C repro on 2023/06/05 07:33
upstream kernel BUG in mpage_prepare_extent_to_map ext4 C done error 145 441d 1002d 0/26 upstream: reported C repro on 2021/05/31 07:15
Last patch testing requests (13)
Created Duration User Patch Repo Result
2024/02/14 11:16 13m retest repro android13-5.10-lts report log
2024/02/14 11:16 21m retest repro android13-5.10-lts report log
2024/02/14 11:16 16m retest repro android13-5.10-lts report log
2024/02/14 11:16 12m retest repro android13-5.10-lts report log
2024/02/14 11:16 13m retest repro android13-5.10-lts report log
2024/01/19 17:55 5m retest repro android13-5.10-lts report log
2024/01/19 17:55 5m retest repro android13-5.10-lts report log
2024/01/19 17:55 5m retest repro android13-5.10-lts report log
2024/01/19 17:55 6m retest repro android13-5.10-lts report log
2024/01/19 17:55 5m retest repro android13-5.10-lts report log
2022/12/12 08:39 8m tudor.ambarus@linaro.org git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.15.y report log
2022/12/12 08:39 8m tudor.ambarus@linaro.org git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.10.y report log
2022/12/12 08:39 9m tudor.ambarus@linaro.org git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2452!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9 Comm: kworker/u4:1 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2452 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2493 [inline]
RIP: 0010:ext4_writepages+0x3b44/0x3c00 fs/ext4/inode.c:2861
Code: 00 74 08 48 89 df e8 7b 05 ca ff 48 8b 3b 48 8b 74 24 28 48 8b 54 24 50 44 89 e1 45 89 f8 e8 f3 cb 07 00 eb 5d e8 dc b0 8c ff <0f> 0b e8 d5 b0 8c ff eb 3b e8 ce b0 8c ff eb 77 e8 c7 b0 8c ff 31
RSP: 0018:ffffc900000970a0 EFLAGS: 00010293
RAX: ffffffff81ddef54 RBX: dffffc0000000000 RCX: ffff888100250000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000097490 R08: ffffffff81ddcb59 R09: ffffed102380fb37
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000973b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f159f457100 CR3: 000000010ceb1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0x12e/0x270 mm/page-writeback.c:2358
 __writeback_single_inode+0xd7/0xac0 fs/fs-writeback.c:1470
 writeback_sb_inodes+0x99c/0x16b0 fs/fs-writeback.c:1733
 wb_writeback+0x404/0xc60 fs/fs-writeback.c:1908
 wb_do_writeback fs/fs-writeback.c:2053 [inline]
 wb_workfn+0x3d9/0x1110 fs/fs-writeback.c:2094
 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299
Modules linked in:
---[ end trace 571f35ec320e8396 ]---
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2452 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2493 [inline]
RIP: 0010:ext4_writepages+0x3b44/0x3c00 fs/ext4/inode.c:2861
Code: 00 74 08 48 89 df e8 7b 05 ca ff 48 8b 3b 48 8b 74 24 28 48 8b 54 24 50 44 89 e1 45 89 f8 e8 f3 cb 07 00 eb 5d e8 dc b0 8c ff <0f> 0b e8 d5 b0 8c ff eb 3b e8 ce b0 8c ff eb 77 e8 c7 b0 8c ff 31
RSP: 0018:ffffc900000970a0 EFLAGS: 00010293
RAX: ffffffff81ddef54 RBX: dffffc0000000000 RCX: ffff888100250000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000097490 R08: ffffffff81ddcb59 R09: ffffed102380fb37
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000973b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f159f457100 CR3: 000000010ceb1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (103):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/10 01:50 android13-5.10-lts a27512601c2d 6654cf89 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/09/09 20:51 android13-5.10-lts a27512601c2d 6654cf89 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/30 15:13 android13-5.10-lts c8ca447a86a2 84803932 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/18 03:51 android13-5.10-lts 8a30c9beebe8 f3921d4d .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/16 06:36 android13-5.10-lts 8a30c9beebe8 f3921d4d .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/10 20:31 android13-5.10-lts 43c801dc3325 49519f06 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/05 08:12 android13-5.10-lts 43c801dc3325 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/07 11:53 android13-5.10-lts 3ad342cf5b2c 90c93c40 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/12 18:32 android12-5.10-lts 416c4356f372 5205ef30 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/12 07:20 android12-5.10-lts 416c4356f372 5205ef30 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/02/26 15:43 android12-5.10-lts 416c4356f372 ee50e71c .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/02/10 11:43 android12-5.10-lts 416c4356f372 07980f9d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2022/12/14 00:29 android12-5.10-lts 202ee063496e f6511626 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2022/12/03 12:18 android12-5.10-lts 25af5a11f1da e080de16 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2022/11/28 16:52 android12-5.10-lts 673a7341bdab 247de55b .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2022/11/27 03:55 android12-5.10-lts 673a7341bdab f4470a7b .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2022/11/27 00:51 android12-5.10-lts 673a7341bdab f4470a7b .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2024/01/31 10:50 android13-5.10-lts 1a7db4583e18 373b66cd .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/09 12:26 android13-5.10-lts 59b65efafe20 668cb1fa .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/08 23:20 android13-5.10-lts 59b65efafe20 668cb1fa .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/03 11:18 android13-5.10-lts 43c801dc3325 a4ae4f42 .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/28 18:11 android13-5.10-lts 43c801dc3325 cf184559 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2023/02/28 19:43 android12-5.10-lts 416c4356f372 95aee97a .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/13 06:24 android12-5.10-lts 416c4356f372 5205ef30 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2024/01/31 10:15 android13-5.10-lts 1a7db4583e18 373b66cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/12/22 16:22 android13-5.10-lts f7977422e132 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/12/11 16:47 android13-5.10-lts 389683767761 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/11/25 16:09 android13-5.10-lts d30b996835c0 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/20 21:28 android13-5.10-lts 8a427269c016 d216d8a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/11 17:35 android13-5.10-lts 8a427269c016 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/07 09:12 android13-5.10-lts 8a427269c016 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/06 19:26 android13-5.10-lts 8a427269c016 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/05 09:23 android13-5.10-lts 8a427269c016 cdae481e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/05 05:52 android13-5.10-lts 8a427269c016 cdae481e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/08/03 08:25 android13-5.10-lts 8a427269c016 39a91c18 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/24 08:44 android13-5.10-lts 59b65efafe20 b03242d7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/23 22:23 android13-5.10-lts 59b65efafe20 27cbe77f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/21 01:07 android13-5.10-lts 59b65efafe20 f49af159 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/15 23:39 android13-5.10-lts 59b65efafe20 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/08 17:10 android13-5.10-lts 59b65efafe20 668cb1fa .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/02 12:36 android13-5.10-lts 28cc6246b5e7 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/07/02 04:35 android13-5.10-lts 28cc6246b5e7 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/26 14:31 android13-5.10-lts 571f442f6752 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/23 15:45 android13-5.10-lts 571f442f6752 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/21 07:26 android13-5.10-lts 8a30c9beebe8 79782afc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/17 14:38 android13-5.10-lts 8a30c9beebe8 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/17 04:54 android13-5.10-lts 8a30c9beebe8 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/15 08:35 android13-5.10-lts 8a30c9beebe8 76decb82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/12 10:53 android13-5.10-lts 43c801dc3325 49519f06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/09 00:17 android13-5.10-lts 43c801dc3325 058b3a5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/04 07:55 android13-5.10-lts 43c801dc3325 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/06/03 10:16 android13-5.10-lts 43c801dc3325 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/30 07:07 android13-5.10-lts 43c801dc3325 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/28 16:50 android13-5.10-lts 43c801dc3325 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/28 11:06 android13-5.10-lts 43c801dc3325 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/19 10:51 android13-5.10-lts 43c801dc3325 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/13 02:09 android13-5.10-lts 43c801dc3325 ecca8a24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/05/05 23:41 android13-5.10-lts 3ad342cf5b2c de870ca5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/25 03:19 android12-5.10-lts 416c4356f372 9700afae .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/20 10:34 android12-5.10-lts 416c4356f372 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/17 17:45 android12-5.10-lts 416c4356f372 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/09 00:42 android12-5.10-lts 416c4356f372 4fc6d98d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/08 14:03 android12-5.10-lts 416c4356f372 d2b00170 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/06 20:36 android12-5.10-lts 416c4356f372 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/04 02:20 android12-5.10-lts 416c4356f372 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/03 22:51 android12-5.10-lts 416c4356f372 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2023/03/03 13:10 android12-5.10-lts 416c4356f372 f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
* Struck through repros no longer work on HEAD.