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KMSAN: uninit-value in udf_update_tag

Status: upstream: reported C repro on 2023/12/28 10:34
Subsystems: udf
[Documentation on labels]
Reported-by: syzbot+d31185aa54170f7fc1f5@syzkaller.appspotmail.com
First crash: 175d, last: 6h39m
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[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
[syzbot] [udf?] KMSAN: uninit-value in udf_update_tag 0 (1) 2023/12/28 10:34

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 (487):
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
2024/04/26 22:49 upstream c942a0cd3603 059e9963 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/26 02:22 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/25 08:18 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/25 03:17 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/23 20:55 upstream 71b1543c83d6 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/23 06:40 upstream 4d2008430ce8 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/22 13:24 upstream ed30a4a51bb1 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/21 08:48 upstream 977b1ef51866 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/21 04:14 upstream 977b1ef51866 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/20 15:49 upstream 13a2e429f644 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/20 02:46 upstream 3cdb45594619 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/18 07:53 upstream 4b6b51322118 bd38b692 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/18 01:08 upstream 96fca68c4fbf bd38b692 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/17 20:57 upstream 96fca68c4fbf bd38b692 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/17 13:26 upstream 96fca68c4fbf 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/16 12:24 upstream cef27048e5c2 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/16 01:10 upstream 0bbac3facb5d 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/15 16:17 upstream 0bbac3facb5d c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/13 21:21 upstream 8f2c057754b2 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/13 18:44 upstream 8f2c057754b2 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/13 14:50 upstream 8f2c057754b2 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/12 18:18 upstream 586b5dfb51b9 27de0a5c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/11 23:07 upstream e8c39d0f57f3 478efa7f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/11 20:43 upstream e8c39d0f57f3 478efa7f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/10 19:59 upstream 2c71fdf02a95 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/10 14:23 upstream 2c71fdf02a95 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/10 11:42 upstream 2c71fdf02a95 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/10 10:38 upstream 2c71fdf02a95 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/09 02:19 upstream fec50db7033e 53df08b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/08 13:35 upstream fec50db7033e ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/07 23:29 upstream 9fe30842a90b ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/07 19:42 upstream f2f80ac80987 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in udf_update_tag
2024/04/26 09:36 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/25 14:32 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/23 23:33 upstream 71b1543c83d6 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/23 10:19 upstream 4d2008430ce8 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/21 16:48 upstream 977b1ef51866 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/18 01:09 upstream 96fca68c4fbf bd38b692 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/17 22:56 upstream 96fca68c4fbf bd38b692 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/17 12:21 upstream 96fca68c4fbf 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/16 03:51 upstream 0bbac3facb5d 0d592ce4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/14 06:08 upstream fa4022cb7361 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/14 04:50 upstream fa4022cb7361 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/13 08:35 upstream 8f2c057754b2 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/12 02:01 upstream e8c39d0f57f3 478efa7f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in udf_update_tag
2024/04/08 03:37 upstream 9fe30842a90b ca620dd8 .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.