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: 381d, last: 1h07m
Discussions (8)
Title Replies (including bot) Last reply
[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
[syzbot] KMSAN: uninit-value in hfs_revalidate_dentry 0 (2) 2023/02/10 12:21

Sample crash report:
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
=====================================================
BUG: KMSAN: uninit-value in hfs_ext_read_extent fs/hfs/extent.c:196 [inline]
BUG: KMSAN: uninit-value in hfs_get_block+0x92d/0x1620 fs/hfs/extent.c:366
 hfs_ext_read_extent fs/hfs/extent.c:196 [inline]
 hfs_get_block+0x92d/0x1620 fs/hfs/extent.c:366
 block_read_full_folio+0x4ff/0x11b0 fs/buffer.c:2271
 hfs_read_folio+0x55/0x60 fs/hfs/inode.c:39
 filemap_read_folio+0x148/0x4f0 mm/filemap.c:2426
 do_read_cache_folio+0x7c8/0xd90 mm/filemap.c:3553
 do_read_cache_page mm/filemap.c:3595 [inline]
 read_cache_page+0xfb/0x2f0 mm/filemap.c:3604
 read_mapping_page include/linux/pagemap.h:755 [inline]
 hfs_btree_open+0x928/0x1ae0 fs/hfs/btree.c:78
 hfs_mdb_get+0x260c/0x3000 fs/hfs/mdb.c:204
 hfs_fill_super+0x1fb1/0x2790 fs/hfs/super.c:406
 mount_bdev+0x628/0x920 fs/super.c:1359
 hfs_mount+0xcd/0xe0 fs/hfs/super.c:456
 legacy_get_tree+0x167/0x2e0 fs/fs_context.c:610
 vfs_get_tree+0xdc/0x5d0 fs/super.c:1489
 do_new_mount+0x7a9/0x16f0 fs/namespace.c:3145
 path_mount+0xf98/0x26a0 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount+0x919/0x9e0 fs/namespace.c:3674
 __ia32_sys_mount+0x15b/0x1b0 fs/namespace.c:3674
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 __alloc_pages+0x926/0x10a0 mm/page_alloc.c:5572
 alloc_pages+0xb4b/0xec0
 alloc_slab_page mm/slub.c:1851 [inline]
 allocate_slab mm/slub.c:1998 [inline]
 new_slab+0x5c5/0x19b0 mm/slub.c:2051
 ___slab_alloc+0x132b/0x3790 mm/slub.c:3193
 __slab_alloc mm/slub.c:3292 [inline]
 __slab_alloc_node mm/slub.c:3345 [inline]
 slab_alloc_node mm/slub.c:3442 [inline]
 slab_alloc mm/slub.c:3460 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3467 [inline]
 kmem_cache_alloc_lru+0x72f/0xb80 mm/slub.c:3483
 alloc_inode_sb include/linux/fs.h:3119 [inline]
 hfs_alloc_inode+0x80/0xf0 fs/hfs/super.c:165
 alloc_inode+0xad/0x4b0 fs/inode.c:259
 iget_locked+0x340/0xf80 fs/inode.c:1286
 hfs_btree_open+0x20d/0x1ae0 fs/hfs/btree.c:38
 hfs_mdb_get+0x2519/0x3000 fs/hfs/mdb.c:199
 hfs_fill_super+0x1fb1/0x2790 fs/hfs/super.c:406
 mount_bdev+0x628/0x920 fs/super.c:1359
 hfs_mount+0xcd/0xe0 fs/hfs/super.c:456
 legacy_get_tree+0x167/0x2e0 fs/fs_context.c:610
 vfs_get_tree+0xdc/0x5d0 fs/super.c:1489
 do_new_mount+0x7a9/0x16f0 fs/namespace.c:3145
 path_mount+0xf98/0x26a0 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount+0x919/0x9e0 fs/namespace.c:3674
 __ia32_sys_mount+0x15b/0x1b0 fs/namespace.c:3674
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

CPU: 1 PID: 5015 Comm: syz-executor119 Not tainted 6.2.0-rc7-syzkaller-80760-g8c89ecf5c13b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
=====================================================

Crashes (2532):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2023/12/11 08:02 upstream a39b6ac3781d 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/09 20:10 upstream f2e8a57ee903 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/09 17:38 upstream f2e8a57ee903 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/09 11:07 upstream f2e8a57ee903 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/09 05:55 upstream f2e8a57ee903 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/08 11:47 upstream 9ace34a8e446 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/08 09:45 upstream 9ace34a8e446 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/07 11:23 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/07 10:07 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/07 03:46 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/07 02:29 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/06 23:49 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/06 22:44 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/06 18:45 upstream bee0e7762ad2 e3299f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/06 10:20 upstream bee0e7762ad2 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/06 07:36 upstream bee0e7762ad2 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/06 04:05 upstream bee0e7762ad2 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/05 17:36 upstream bee0e7762ad2 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/05 08:27 upstream bee0e7762ad2 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/04 21:14 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/04 16:58 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/04 13:48 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/04 10:33 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/04 04:29 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/03 22:23 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/03 17:32 upstream 33cc938e65a9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/03 00:07 upstream 815fb87b7530 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/02 21:45 upstream 815fb87b7530 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/02 20:38 upstream 815fb87b7530 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/02 18:35 upstream 815fb87b7530 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/02 12:30 upstream 815fb87b7530 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/01 14:03 upstream e8f60209d6cf f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/01 10:30 upstream e8f60209d6cf f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/12/01 01:05 upstream 3b47bc037bd4 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/30 03:05 upstream 3b47bc037bd4 6e78f9ce .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/29 08:41 upstream 18d46e76d7c2 1adfb6f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/29 03:04 upstream 18d46e76d7c2 1adfb6f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/27 11:35 upstream d2da77f431ac 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/27 07:12 upstream d2da77f431ac 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/26 20:51 upstream 090472ed9c92 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/26 18:56 upstream 090472ed9c92 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/26 18:29 upstream 090472ed9c92 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/26 05:11 upstream b46ae77f6787 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/26 02:52 upstream b46ae77f6787 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/25 20:31 upstream 0f5cc96c367f 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/25 15:09 upstream 0f5cc96c367f 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/25 01:51 upstream fa2b906f5148 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/24 18:36 upstream f1a09972a45a 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in hfs_revalidate_dentry
2023/11/24 16:52 upstream f1a09972a45a 5b429f39 .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.