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WARNING in __udf_add_aext

Status: upstream: reported C repro on 2023/08/20 05:08
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+6a9661c8887dbe7bd474@syzkaller.appspotmail.com
First crash: 613d, last: 1d06h
Fix commit to backport (bisect log) :
tree: upstream
commit c2efd13a2ed4f29bf9ef14ac2fbb7474084655f8
Author: Jan Kara <jack@suse.cz>
Date: Wed Jan 25 16:56:06 2023 +0000

  udf: Limit file size to 4TB

[report pending]
  
Fix bisection: the issue occurs on the latest tested release (bisect log)
Crash: WARNING in __udf_add_aext (log)
Repro: C syz .config
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2025/01/15 upstream (ToT) 7f5b6a8ec18e C [report] WARNING in __udf_add_aext
▶ ▼ Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in __udf_add_aext udf C 3 783d 1161d 0/1 upstream: reported C repro on 2022/02/18 06:47
upstream WARNING in __udf_add_aext (3) udf C error 1051 10h35m 381d 0/28 upstream: reported C repro on 2024/04/08 08:26
linux-4.19 WARNING in __udf_add_aext udf C error 20 795d 1195d 0/1 upstream: reported C repro on 2022/01/14 21:09
upstream WARNING in __udf_add_aext udf C error 170 689d 927d 22/28 fixed on 2023/06/08 14:41
upstream WARNING in __udf_add_aext (2) udf syz error done 6 500d 681d 25/28 fixed on 2024/01/30 15:47
linux-6.1 WARNING in __udf_add_aext origin:lts-only C done 107 6h17m 563d 0/3 upstream: reported C repro on 2023/10/08 20:16
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2025/03/17 22:51 10m retest repro linux-5.15.y report log
2025/02/16 22:10 11m retest repro linux-5.15.y report log
2025/01/14 22:09 17m retest repro linux-5.15.y OK log
2025/01/14 22:09 10m retest repro linux-5.15.y report log
2025/01/14 22:09 18m retest repro linux-5.15.y OK log
2024/12/07 19:38 11m retest repro linux-5.15.y report log
2024/10/15 05:40 0m retest repro linux-5.15.y error
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2024/01/03 14:29 4h30m fix candidate upstream OK (1) job log
2023/12/12 18:51 1h09m bisect fix linux-5.15.y OK (0) job log log
2023/11/11 17:27 50m bisect fix linux-5.15.y OK (0) job log log
2023/10/10 07:16 1h11m bisect fix linux-5.15.y OK (0) job log log

Sample crash report:
loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4162 at fs/udf/inode.c:1935 __udf_add_aext+0x54c/0x6f0
Modules linked in:
CPU: 1 PID: 4162 Comm: syz-executor174 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__udf_add_aext+0x54c/0x6f0 fs/udf/inode.c:1934
Code: 4c 89 e7 e8 b6 66 e5 fe 49 8b 3c 24 4c 89 fe e8 2a d5 00 ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 34 7e 9b fe <0f> 0b e9 ed fb ff ff e8 28 7e 9b fe 0f 0b e9 5c fc ff ff e8 1c 7e
RSP: 0018:ffffc90002def7d8 EFLAGS: 00010293
RAX: ffffffff82e5075c RBX: 1ffff920005bdf75 RCX: ffff888022451dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001d0
RBP: 00000000000001d0 R08: ffffffff82e50342 R09: ffffffff82e50272
R10: 0000000000000002 R11: ffff888022451dc0 R12: ffffc90002defba0
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90002defba8
FS:  000055555acdd380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8cacb7de00 CR3: 000000007dee1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setup_indirect_aext+0x6bc/0x980 fs/udf/inode.c:1900
 udf_add_aext fs/udf/inode.c:1987 [inline]
 udf_do_extend_file+0x6df/0x1140 fs/udf/inode.c:472
 udf_extend_file fs/udf/inode.c:586 [inline]
 udf_setsize+0xd3c/0x1430 fs/udf/inode.c:1156
 udf_setattr+0x36c/0x540 fs/udf/file.c:277
 notify_change+0xc6d/0xf50 fs/attr.c:505
 do_truncate+0x21c/0x300 fs/open.c:65
 do_sys_ftruncate+0x2eb/0x390 fs/open.c:193
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8cb4ebbb79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe5ca292a8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8cb4ebbb79
RDX: 00007f8cb4ebbb79 RSI: 0000008002007ffb RDI: 0000000000000004
RBP: 00007f8cb4f20dc4 R08: 0000000000000000 R09: 00000000000b15f8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe5ca29478 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (110):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/03/02 17:38 linux-5.15.y c16c81c81336 c3901742 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/28 10:04 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/11/16 12:19 linux-5.15.y d98fd109f827 cfe3a04a .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2025/04/23 11:37 linux-5.15.y f7347f400572 53a8b9bd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/04/21 00:49 linux-5.15.y f7347f400572 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/04/18 01:26 linux-5.15.y f7347f400572 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/04/10 21:41 linux-5.15.y f7347f400572 1ef3ab4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/04/03 09:14 linux-5.15.y 0c935c049b5c 996a9618 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/03/31 04:47 linux-5.15.y 0c935c049b5c d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/03/02 17:00 linux-5.15.y c16c81c81336 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/01/27 02:20 linux-5.15.y 003148680b79 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/12/31 19:36 linux-5.15.y 91786f140358 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/12/30 19:52 linux-5.15.y 91786f140358 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/11/23 11:52 linux-5.15.y 0a51d2d4527b 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/10/31 23:48 linux-5.15.y 74cdd62cb470 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/10/27 21:07 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/09/23 20:09 linux-5.15.y 3a5928702e71 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/09/08 15:46 linux-5.15.y 14e468424d3e 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/09/08 09:59 linux-5.15.y 14e468424d3e 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/09/08 09:58 linux-5.15.y 14e468424d3e 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/09/08 01:44 linux-5.15.y 14e468424d3e 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/08/12 01:48 linux-5.15.y 7e89efd3ae1c 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/08/11 23:46 linux-5.15.y 7e89efd3ae1c 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/08/01 16:36 linux-5.15.y 7e89efd3ae1c 1e9c4cf3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/29 09:30 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/29 05:00 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/28 16:22 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/28 09:01 linux-5.15.y 7e89efd3ae1c 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/22 17:01 linux-5.15.y 7c6d66f0266f df655b64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/22 17:00 linux-5.15.y 7c6d66f0266f df655b64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/13 16:52 linux-5.15.y f45bea23c39c eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/11 14:50 linux-5.15.y f45bea23c39c c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/07 16:24 linux-5.15.y f45bea23c39c 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/07 04:39 linux-5.15.y f45bea23c39c 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/06 10:45 linux-5.15.y f45bea23c39c 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/05 00:50 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/02 16:56 linux-5.15.y 4878aadf2d15 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/07/01 06:59 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/06/25 08:02 linux-5.15.y 4878aadf2d15 215eef4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/06/24 09:24 linux-5.15.y 4878aadf2d15 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/06/20 07:10 linux-5.15.y 4878aadf2d15 41b7e219 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/06/05 18:49 linux-5.15.y c61bd26ae81a 5aa1a7c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/06/04 05:09 linux-5.15.y c61bd26ae81a a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2024/04/14 04:06 linux-5.15.y fa3df276cd36 c8349e48 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2023/08/20 05:08 linux-5.15.y f6f7927ac664 d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in __udf_add_aext
2025/04/12 22:11 linux-5.15.y f7347f400572 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2025/04/12 07:07 linux-5.15.y f7347f400572 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2025/04/09 13:57 linux-5.15.y 0c935c049b5c 47d015b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2025/03/21 08:25 linux-5.15.y 0c935c049b5c 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2025/02/22 04:41 linux-5.15.y c16c81c81336 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2025/02/02 21:43 linux-5.15.y c16c81c81336 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2024/11/16 11:58 linux-5.15.y d98fd109f827 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2024/08/29 04:44 linux-5.15.y fa93fa65db6e ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2024/08/26 04:59 linux-5.15.y fa93fa65db6e d7d32352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2024/08/01 15:03 linux-5.15.y 7e89efd3ae1c 1e9c4cf3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
2024/06/11 12:42 linux-5.15.y c61bd26ae81a b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __udf_add_aext
* Struck through repros no longer work on HEAD.