syzbot


KMSAN: uninit-value in hfs_revalidate_dentry

Status: upstream: reported C repro on 2022/11/25 09:56
Subsystems: hfs
[Documentation on labels]
Reported-by: syzbot+3ae6be33a50b5aae4dab@syzkaller.appspotmail.com
First crash: 546d, last: 37m
Discussions (13)
Title Replies (including bot) Last reply
[syzbot] Monthly hfs report (May 2024) 0 (1) 2024/05/13 21:13
[syzbot] KMSAN: uninit-value in hfs_revalidate_dentry 0 (4) 2024/04/14 17:04
[syzbot] Monthly hfs report (Apr 2024) 0 (1) 2024/04/12 13:18
[syzbot] Monthly hfs report (Mar 2024) 0 (1) 2024/03/12 09:29
[syzbot] Monthly hfs report (Feb 2024) 0 (1) 2024/02/09 21:02
[syzbot] Monthly hfs report (Jan 2024) 0 (1) 2024/01/10 09:16
[syzbot] Monthly hfs report (Dec 2023) 0 (1) 2023/12/06 10:05
[syzbot] Monthly hfs report (Oct 2023) 0 (1) 2023/10/04 13:13
[syzbot] Monthly hfs report (Aug 2023) 0 (1) 2023/08/30 09:53
[syzbot] Monthly hfs report (Jul 2023) 0 (1) 2023/07/30 13:17
[syzbot] Monthly hfs report (Jun 2023) 0 (1) 2023/06/29 08:55
[syzbot] Monthly hfs report (May 2023) 0 (1) 2023/05/30 08:18
[syzbot] Monthly hfs report (Apr 2023) 0 (1) 2023/04/27 13:32
Last patch testing requests (2)
Created Duration User Patch Repo Result
2024/04/14 17:04 23m shresthprasad7@gmail.com patch upstream report log
2024/04/13 18:56 54m shresthprasad7@gmail.com upstream report log

Sample crash report:
loop0: detected capacity change from 0 to 64
=====================================================
BUG: KMSAN: uninit-value in hfs_revalidate_dentry+0x307/0x3f0 fs/hfs/sysdep.c:30
 hfs_revalidate_dentry+0x307/0x3f0 fs/hfs/sysdep.c:30
 d_revalidate fs/namei.c:862 [inline]
 lookup_fast+0x89e/0x8e0 fs/namei.c:1649
 walk_component fs/namei.c:2001 [inline]
 link_path_walk+0x817/0x1480 fs/namei.c:2332
 path_lookupat+0xd9/0x6f0 fs/namei.c:2485
 filename_lookup+0x22e/0x740 fs/namei.c:2515
 user_path_at_empty+0x8b/0x390 fs/namei.c:2924
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3689 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x66b/0x810 fs/namespace.c:3875
 __x64_sys_mount+0xe4/0x140 fs/namespace.c:3875
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Uninit was created at:
 __alloc_pages+0x9a6/0xe00 mm/page_alloc.c:4590
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page mm/slub.c:2190 [inline]
 allocate_slab mm/slub.c:2354 [inline]
 new_slab+0x2d7/0x1400 mm/slub.c:2407
 ___slab_alloc+0x16b5/0x3970 mm/slub.c:3540
 __slab_alloc mm/slub.c:3625 [inline]
 __slab_alloc_node mm/slub.c:3678 [inline]
 slab_alloc_node mm/slub.c:3850 [inline]
 kmem_cache_alloc_lru+0x64d/0xb30 mm/slub.c:3879
 alloc_inode_sb include/linux/fs.h:3018 [inline]
 hfs_alloc_inode+0x5a/0xc0 fs/hfs/super.c:165
 alloc_inode+0x83/0x440 fs/inode.c:260
 new_inode_pseudo fs/inode.c:1005 [inline]
 new_inode+0x38/0x4f0 fs/inode.c:1031
 hfs_new_inode+0x61/0x1010 fs/hfs/inode.c:186
 hfs_mkdir+0x54/0x250 fs/hfs/dir.c:228
 vfs_mkdir+0x49a/0x700 fs/namei.c:4126
 do_mkdirat+0x529/0x810 fs/namei.c:4149
 __do_sys_mkdirat fs/namei.c:4164 [inline]
 __se_sys_mkdirat fs/namei.c:4162 [inline]
 __x64_sys_mkdirat+0xc8/0x120 fs/namei.c:4162
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

CPU: 0 PID: 5010 Comm: syz-executor376 Not tainted 6.8.0-rc6-syzkaller-00278-g58c806d867bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
=====================================================

Crashes (8010):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/04 04:46 upstream 58c806d867bf 25905f5d .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/25 17:13 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 hfs_revalidate_dentry
2023/02/10 12:21 https://github.com/google/kmsan.git master 8c89ecf5c13b 07980f9d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_get_block
2024/05/24 03:31 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/24 02:16 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/24 01:15 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 23:44 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 22:24 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 22:23 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 14:04 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 13:12 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 11:55 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 08:15 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 06:34 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 05:29 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 01:47 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 00:47 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 00:34 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 23:33 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 23:33 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 22:19 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 10:28 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 08:06 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 07:25 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 06:20 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 06:14 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 05:03 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 04:22 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 03:15 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 02:57 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 01:45 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 00:21 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/21 22:46 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/21 18:00 upstream 614da38e2f7a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 10:38 upstream 101b7a97143a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 09:24 upstream 101b7a97143a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 07:10 upstream 101b7a97143a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 04:46 upstream 101b7a97143a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 03:33 upstream 101b7a97143a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/23 02:33 upstream 101b7a97143a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 10:44 upstream 101b7a97143a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 09:24 upstream 101b7a97143a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/22 09:16 upstream 101b7a97143a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/21 21:21 upstream 101b7a97143a 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/21 14:31 upstream 101b7a97143a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/21 13:25 upstream 101b7a97143a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2024/05/21 13:24 upstream 101b7a97143a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/20 09:19 upstream 55cb5f43689d 3ad490ea .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2022/11/25 08:17 https://github.com/google/kmsan.git master a472f15b3d1e 74a66371 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2022/11/25 01:34 https://github.com/google/kmsan.git master e889f323ec44 62e26685 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/08/31 03:13 upstream 6c1b980a7e79 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_get_block
2023/08/23 03:54 upstream 53663f4103ff b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_extend_file
* Struck through repros no longer work on HEAD.