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: 575d, last: 11d
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 475d 1349d 0/1 upstream: reported C repro on 2020/10/14 01:19
android-54 kernel BUG at fs/ext4/inode.c:LINE! ext4 C 170 3d16h 1623d 0/2 upstream: reported C repro on 2020/01/14 12:13
linux-5.15 kernel BUG in ext4_writepages origin:upstream C error 42 2d10h 469d 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 483d 1277d 0/1 upstream: reported C repro on 2020/12/25 03:51
linux-6.1 kernel BUG in ext4_writepages origin:upstream C 58 2d09h 469d 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 80 4d02h 615d 0/2 upstream: reported C repro on 2022/10/18 14:12
android-5-10 kernel BUG in ext4_writepages C error 5 615d 776d 2/2 fixed on 2022/11/16 18:44
android-6-1 kernel BUG in ext4_writepages origin:upstream C error 41 7d17h 385d 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 559d 1120d 0/27 auto-obsoleted due to no activity on 2024/03/07 20:46
Last patch testing requests (13)
Created Duration User Patch Repo Result
2024/06/03 02:28 15m retest repro android13-5.10-lts report log
2024/06/03 02:28 16m retest repro android13-5.10-lts report log
2024/06/03 02:28 25m retest repro android13-5.10-lts report log
2024/06/03 02:28 16m retest repro android13-5.10-lts report log
2024/06/03 02:28 12m retest repro android13-5.10-lts report log
2024/05/14 10:10 1m retest repro android13-5.10-lts error OK
2024/05/14 10:10 1m retest repro android13-5.10-lts error OK
2024/05/14 10:10 3m retest repro android13-5.10-lts error OK
2024/05/14 09:31 13m retest repro android13-5.10-lts error OK
2024/05/14 09:31 2m retest repro android13-5.10-lts error OK
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:2766!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 48 Comm: kworker/u4:2 Not tainted 5.10.210-syzkaller-00394-g70b6ab09a34b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:ext4_writepages+0x3bdf/0x3c00 fs/ext4/inode.c:2765
Code: 63 8c ff 31 ff 89 de e8 ff 62 8c ff 45 84 f6 75 27 e8 65 60 8c ff 49 be 00 00 00 00 00 fc ff df e9 0e f7 ff ff e8 51 60 8c ff <0f> 0b e8 4a 60 8c ff e8 a1 35 22 ff eb 9b e8 3e 60 8c ff e8 95 35
RSP: 0000:ffffc900009d70a0 EFLAGS: 00010293
RAX: ffffffff81de49af RBX: 0000008000000000 RCX: ffff888101bb0000
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc900009d7490 R08: ffffffff81de1423 R09: ffffed10239e03bc
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffffc900009d77d0 R14: 000000c410000000 R15: ffffc900009d7360
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e96390128 CR3: 0000000117134000 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 65e6dea34b48e8da ]---
RIP: 0010:ext4_writepages+0x3bdf/0x3c00 fs/ext4/inode.c:2765
Code: 63 8c ff 31 ff 89 de e8 ff 62 8c ff 45 84 f6 75 27 e8 65 60 8c ff 49 be 00 00 00 00 00 fc ff df e9 0e f7 ff ff e8 51 60 8c ff <0f> 0b e8 4a 60 8c ff e8 a1 35 22 ff eb 9b e8 3e 60 8c ff e8 95 35
RSP: 0000:ffffc900009d70a0 EFLAGS: 00010293
RAX: ffffffff81de49af RBX: 0000008000000000 RCX: ffff888101bb0000
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc900009d7490 R08: ffffffff81de1423 R09: ffffed10239e03bc
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffffc900009d77d0 R14: 000000c410000000 R15: ffffc900009d7360
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e8dfd6000 CR3: 000000011ddc4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (124):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/14 14:47 android13-5.10-lts 70b6ab09a34b fdb4c10c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/30 07:09 android13-5.10-lts 70b6ab09a34b f10afd69 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/25 13:52 android13-5.10-lts 70b6ab09a34b 8bdc0f22 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/22 23:44 android13-5.10-lts 70b6ab09a34b 36c961ad .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/21 03:44 android13-5.10-lts 8d3bb9cb3b7d af24b050 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 kernel BUG in ext4_writepages
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
2024/03/02 12:06 android13-5.10-lts dd976ecce2ce 25905f5d .config console log report syz [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
2024/06/12 17:34 android13-5.10-lts d3c4d815bf09 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/05/20 01:31 android13-5.10-lts 70b6ab09a34b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/27 06:43 android13-5.10-lts 70b6ab09a34b 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/26 18:21 android13-5.10-lts 70b6ab09a34b 059e9963 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/24 14:45 android13-5.10-lts 70b6ab09a34b 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/17 17:37 android13-5.10-lts 3c981dac49d9 acc528cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/17 01:31 android13-5.10-lts 4e1bc8d8e8ae 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/14 21:35 android13-5.10-lts 4e1bc8d8e8ae c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/14 12:01 android13-5.10-lts 4e1bc8d8e8ae c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/13 10:36 android13-5.10-lts 4e1bc8d8e8ae c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/04/06 23:45 android13-5.10-lts e7daca75b4c3 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/03/29 02:34 android13-5.10-lts e7daca75b4c3 e91187ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/03/28 17:42 android13-5.10-lts e7daca75b4c3 e91187ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/03/28 01:02 android13-5.10-lts e7daca75b4c3 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 kernel BUG in ext4_writepages
2024/03/27 20:58 android13-5.10-lts e7daca75b4c3 120789fd .config console log report info [disk image] [vmlinux] [kernel image] 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
* Struck through repros no longer work on HEAD.