syzbot


KMSAN: uninit-value in bch2_inode_unpack

Status: upstream: reported on 2024/05/05 18:26
Subsystems: bcachefs
[Documentation on labels]
Reported-by: syzbot+c123a98c7445baffb168@syzkaller.appspotmail.com
First crash: 41d, last: 3d21h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [bcachefs?] KMSAN: uninit-value in bch2_inode_unpack 0 (1) 2024/05/05 18:26

Sample crash report:
=====================================================
BUG: KMSAN: uninit-value in bch2_inode_unpack_v3 fs/bcachefs/inode.c:270 [inline]
BUG: KMSAN: uninit-value in bch2_inode_unpack+0xaf0/0x4c40 fs/bcachefs/inode.c:323
 bch2_inode_unpack_v3 fs/bcachefs/inode.c:270 [inline]
 bch2_inode_unpack+0xaf0/0x4c40 fs/bcachefs/inode.c:323
 bch2_inode_peek_nowarn+0x4ec/0x5a0 fs/bcachefs/inode.c:351
 bch2_inode_peek+0x9e/0x3b0 fs/bcachefs/inode.c:366
 bch2_unlink_trans+0x2d7/0x2190 fs/bcachefs/fs-common.c:258
 __bch2_unlink+0x3e5/0x9c0 fs/bcachefs/fs.c:529
 bch2_unlink+0x128/0x1d0 fs/bcachefs/fs.c:563
 vfs_unlink+0x676/0xa30 fs/namei.c:4343
 do_unlinkat+0x823/0xe10 fs/namei.c:4407
 __do_sys_unlink fs/namei.c:4455 [inline]
 __se_sys_unlink fs/namei.c:4453 [inline]
 __x64_sys_unlink+0x78/0xb0 fs/namei.c:4453
 x64_sys_call+0x31c7/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:88
 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+0x77/0x7f

Uninit was created at:
 __kmalloc_large_node+0x231/0x370 mm/slub.c:3994
 __do_kmalloc_node mm/slub.c:4027 [inline]
 __kmalloc_node+0xb10/0x10c0 mm/slub.c:4046
 kmalloc_node include/linux/slab.h:648 [inline]
 kvmalloc_node+0xc0/0x2d0 mm/util.c:634
 kvmalloc include/linux/slab.h:766 [inline]
 btree_bounce_alloc fs/bcachefs/btree_io.c:118 [inline]
 bch2_btree_node_read_done+0x4e68/0x75e0 fs/bcachefs/btree_io.c:1185
 btree_node_read_work+0x8a5/0x1eb0 fs/bcachefs/btree_io.c:1324
 bch2_btree_node_read+0x3d42/0x4b50
 __bch2_btree_root_read fs/bcachefs/btree_io.c:1748 [inline]
 bch2_btree_root_read+0xa6c/0x13d0 fs/bcachefs/btree_io.c:1772
 read_btree_roots+0x454/0xee0 fs/bcachefs/recovery.c:457
 bch2_fs_recovery+0x7b6a/0x93e0 fs/bcachefs/recovery.c:785
 bch2_fs_start+0x7b2/0xbd0 fs/bcachefs/super.c:1043
 bch2_fs_open+0x152a/0x15f0 fs/bcachefs/super.c:2105
 bch2_mount+0x90d/0x1d90 fs/bcachefs/fs.c:1906
 legacy_get_tree+0x114/0x290 fs/fs_context.c:662
 vfs_get_tree+0xa7/0x570 fs/super.c:1779
 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352
 path_mount+0x742/0x1f20 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3875
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875
 x64_sys_call+0x2bf4/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:166
 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+0x77/0x7f

CPU: 0 PID: 5093 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
=====================================================

Crashes (187):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/11 07:10 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 06:49 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 06:32 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 06:17 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 05:56 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 05:35 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 05:16 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:59 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:59 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:58 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:55 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:54 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:53 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 04:53 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/11 01:29 upstream 614da38e2f7a 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/09 15:38 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/09 09:58 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/09 09:57 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/09 09:19 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/09 09:18 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/08 23:47 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/08 22:30 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/08 21:52 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/08 08:33 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/08 03:54 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 07:52 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 04:53 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 04:34 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 04:13 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 03:38 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 00:31 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 00:21 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/07 00:21 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/05 16:14 upstream 614da38e2f7a e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/31 11:04 upstream 614da38e2f7a 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/31 09:09 upstream 614da38e2f7a 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/24 12:41 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/24 01:07 upstream 614da38e2f7a 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/19 21:44 upstream 614da38e2f7a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/19 17:37 upstream 614da38e2f7a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/19 15:25 upstream 614da38e2f7a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/05/05 00:03 upstream 7367539ad4b0 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/09 02:08 upstream 101b7a97143a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in bch2_inode_unpack
2024/06/02 08:14 upstream 101b7a97143a 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386-root KMSAN: uninit-value in bch2_inode_unpack
* Struck through repros no longer work on HEAD.