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WARNING in udf_truncate_extents

Status: upstream: reported C repro on 2023/03/19 00:16
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+c9e721ff7f0f74b75956@syzkaller.appspotmail.com
First crash: 830d, last: 11d
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2023/05/10 linux-6.1.y (ToT) ca48fc16c493 C [report] INFO: rcu detected stall in corrupted
2023/05/10 upstream (ToT) 16a8829130ca C Didn't crash
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in udf_truncate_extents C error 4 1002d 1213d 0/1 upstream: reported C repro on 2022/03/01 11:21
linux-4.19 WARNING in udf_truncate_extents udf C error 245 847d 1372d 0/1 upstream: reported C repro on 2021/09/23 06:31
linux-5.15 WARNING in udf_truncate_extents origin:lts-only C done 196 20d 830d 0/3 upstream: reported C repro on 2023/03/18 20:24
linux-6.6 WARNING in udf_truncate_extents origin:upstream C 9 1d11h 7d06h 0/2 upstream: reported C repro on 2025/06/19 08:31
upstream WARNING in udf_truncate_extents udf C done error 11935 8m 1718d 0/29 upstream: reported C repro on 2020/10/12 13:20
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/09/19 17:01 6h52m fix candidate upstream OK (1) job log

Sample crash report:
loop0: detected capacity change from 0 to 2048
UDF-fs: warning (device loop0): udf_load_vrs: No anchor found
UDF-fs: Scanning with blocksize 512 failed
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
loop0: detected capacity change from 2048 to 0
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4244 at fs/udf/truncate.c:209 udf_truncate_extents+0x1065/0x12a0
Modules linked in:
CPU: 1 PID: 4244 Comm: syz-executor710 Not tainted 6.1.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:udf_truncate_extents+0x1065/0x12a0 fs/udf/truncate.c:209
Code: 25 28 00 00 00 48 3b 84 24 a0 01 00 00 0f 85 3f 02 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 bb 27 7f fe <0f> 0b eb 95 48 8d 8c 24 60 01 00 00 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90003a07840 EFLAGS: 00010293
RAX: ffffffff830b7445 RBX: ffff88807389e018 RCX: ffff888026863b80
RDX: 0000000000000000 RSI: 0000000007743c08 RDI: 0000000000000000
RBP: ffffc90003a07a30 R08: ffffffff830b68ae R09: ffffffff830951e9
R10: 0000000000000002 R11: ffff888026863b80 R12: ffffc90003a07920
R13: 0000000007743c08 R14: dffffc0000000000 R15: 0000000000000000
FS:  000055557751e380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005645b5360578 CR3: 0000000078f59000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setsize+0x100a/0x1430 fs/udf/inode.c:1174
 udf_setattr+0x36c/0x540 fs/udf/file.c:279
 notify_change+0xce3/0xfc0 fs/attr.c:499
 do_truncate+0x21c/0x300 fs/open.c:65
 vfs_truncate+0x2dd/0x3a0 fs/open.c:111
 do_sys_truncate+0xda/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f78c2931b79
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:00007ffd1bf11028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007ffd1bf111f8 RCX: 00007f78c2931b79
RDX: 00007f78c2931b79 RSI: 0000000008000008 RDI: 00000000200000c0
RBP: 00007f78c29aa610 R08: 00007ffd1bf111f8 R09: 00007ffd1bf111f8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd1bf111e8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (409):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/13 01:57 linux-6.1.y c63962be84ef 6dbc6a9b .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/05/08 01:45 linux-6.1.y ca48fc16c493 90c93c40 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/12 05:45 linux-6.1.y 58485ff1a74f 98683f8f .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2023/08/28 22:49 linux-6.1.y 024f76bca9d0 7ba13a15 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/07/09 15:58 linux-6.1.y 61fd484b2cf6 668cb1fa .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/03/31 17:53 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/03/19 00:16 linux-6.1.y 7eaef76fbc46 7939252e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2025/06/14 22:04 linux-6.1.y 58485ff1a74f 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/14 05:53 linux-6.1.y 58485ff1a74f 0e8da31f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 22:23 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 22:01 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 21:35 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 21:22 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 20:38 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 11:59 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 11:36 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 10:42 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 09:53 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/13 09:21 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/12 12:34 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/12 10:15 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/12 09:17 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/03/15 08:38 linux-6.1.y 344a09659766 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/28 12:34 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/28 05:26 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/28 00:04 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/27 21:03 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/27 20:57 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/27 16:20 linux-6.1.y 3a8358583626 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/22 15:14 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/02/22 05:17 linux-6.1.y 3a8358583626 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/01/13 00:59 linux-6.1.y c63962be84ef 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2024/11/09 04:56 linux-6.1.y d7039b844a1c 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2024/08/20 08:16 linux-6.1.y ee5e09825b81 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/12/04 17:13 linux-6.1.y c6114c845984 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/09/06 15:21 linux-6.1.y c2cbfe5f5122 0b6286dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/09/03 21:52 linux-6.1.y c2cbfe5f5122 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/09/02 21:25 linux-6.1.y c2cbfe5f5122 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2025/06/15 12:30 linux-6.1.y 58485ff1a74f 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2025/06/12 05:12 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2025/06/12 03:42 linux-6.1.y 58485ff1a74f 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2025/04/10 20:55 linux-6.1.y 420102835862 1ef3ab4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2024/11/25 09:29 linux-6.1.y e4d90d63d385 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2024/10/21 17:33 linux-6.1.y 54d90d17e8ce f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2024/10/19 01:45 linux-6.1.y 54d90d17e8ce cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2024/10/11 09:42 linux-6.1.y aa4cd140bba5 cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in udf_truncate_extents
2023/08/28 19:23 linux-6.1.y 024f76bca9d0 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/08/15 03:24 linux-6.1.y 1321ab403b38 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/08/05 22:39 linux-6.1.y 52a953d0934b 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/08/04 04:54 linux-6.1.y 52a953d0934b 74621247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/08/02 07:47 linux-6.1.y d2a6dc4eaf6d df07ffe8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
2023/08/01 01:31 linux-6.1.y d2a6dc4eaf6d 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_truncate_extents
* Struck through repros no longer work on HEAD.