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KMSAN: uninit-value in udf_update_tag

Status: fixed on 2024/08/14 03:44
Subsystems: udf
[Documentation on labels]
Reported-by: syzbot+d31185aa54170f7fc1f5@syzkaller.appspotmail.com
Fix commit: 27ab33854873 udf: Fix bogus checksum computation in udf_rename()
First crash: 452d, last: 231d
▶ ▼ Discussions (8)
Title Replies (including bot) Last reply
[syzbot] [udf?] KMSAN: uninit-value in udf_update_tag 1 (3) 2024/06/18 03:55
[PATCH 1/3] udf: Fix bogus checksum computation in udf_rename() 1 (1) 2024/06/17 15:41
[syzbot] Monthly udf report (Jun 2024) 0 (1) 2024/06/15 17:49
[syzbot] Monthly udf report (May 2024) 0 (1) 2024/05/14 20:49
[syzbot] Monthly udf report (Apr 2024) 0 (1) 2024/04/13 14:40
[syzbot] Monthly udf report (Mar 2024) 0 (1) 2024/03/13 13:48
[syzbot] Monthly udf report (Feb 2024) 0 (1) 2024/02/12 10:25
[syzbot] Monthly udf report (Jan 2024) 0 (1) 2024/01/10 20:36
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in udf_update_tag udf C 19 12d 160d 0/28 upstream: reported C repro on 2024/08/21 07:43
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/06/17 13:39 11h48m jack@suse.cz patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6ba59ff4227927d3a8530fc2973b80e94b54d58f error

Sample crash report:
UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000)
=====================================================
BUG: KMSAN: uninit-value in crc_itu_t_byte include/linux/crc-itu-t.h:22 [inline]
BUG: KMSAN: uninit-value in crc_itu_t+0x287/0x2e0 lib/crc-itu-t.c:60
 crc_itu_t_byte include/linux/crc-itu-t.h:22 [inline]
 crc_itu_t+0x287/0x2e0 lib/crc-itu-t.c:60
 udf_update_tag+0x5c/0x2a0 fs/udf/misc.c:261
 udf_rename+0x1202/0x16d0 fs/udf/namei.c:879
 vfs_rename+0x1d9a/0x2280 fs/namei.c:4880
 do_renameat2+0x18cc/0x1d50 fs/namei.c:5037
 __do_sys_renameat2 fs/namei.c:5071 [inline]
 __se_sys_renameat2 fs/namei.c:5068 [inline]
 __x64_sys_renameat2+0x153/0x200 fs/namei.c:5068
 do_syscall_64+0xd5/0x1f0
 entry_SYSCALL_64_after_hwframe+0x72/0x7a

Local variable diriter created at:
 udf_rename+0xbe/0x16d0 fs/udf/namei.c:767
 vfs_rename+0x1d9a/0x2280 fs/namei.c:4880

CPU: 1 PID: 5016 Comm: syz-executor404 Not tainted 6.9.0-rc2-syzkaller-00207-ge8b0ccb2a787 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
=====================================================

Crashes (877):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/06 20:15 upstream e8b0ccb2a787 ca620dd8 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2023/12/25 19:01 upstream 861deac3b092 fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/11 16:37 upstream 614da38e2f7a c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/11 04:11 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/10 15:34 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/09 08:27 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/09 08:27 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/08 09:46 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/08 08:46 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/07 23:32 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/07 04:19 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/05 13:47 upstream 614da38e2f7a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/05 09:04 upstream 614da38e2f7a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/05 07:35 upstream 614da38e2f7a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/03 23:25 upstream 614da38e2f7a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/03 22:13 upstream 614da38e2f7a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/03 19:18 upstream 614da38e2f7a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/03 17:08 upstream 614da38e2f7a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/03 06:25 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/02 21:44 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/02 19:42 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/02 07:48 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/02 06:46 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/02 04:16 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/02 03:04 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/01 23:43 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/01 21:12 upstream 614da38e2f7a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/06/11 19:47 upstream 101b7a97143a c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/11 18:33 upstream 101b7a97143a c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/09 09:29 upstream 101b7a97143a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/08 14:22 upstream 101b7a97143a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/08 13:10 upstream 101b7a97143a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/06 13:41 upstream 101b7a97143a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/05 16:43 upstream 101b7a97143a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/05 12:31 upstream 101b7a97143a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/05 11:02 upstream 101b7a97143a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/04 03:48 upstream 101b7a97143a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/04 03:48 upstream 101b7a97143a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/03 01:11 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/02 22:46 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/02 17:48 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/02 12:12 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/02 09:16 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/02 05:20 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/02 00:43 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/06/01 22:13 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2023/12/16 10:25 upstream 3bd7d7488169 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in udf_update_tag
* Struck through repros no longer work on HEAD.