syzbot has found a reproducer for the following issue on: HEAD commit: 861deac3b092 Linux 6.7-rc7 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=12057ecee80000 kernel config: https://syzkaller.appspot.com/x/.config?x=e0c7078a6b901aa3 dashboard link: https://syzkaller.appspot.com/bug?extid=6450929faa7a97cd42d1 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14836ca1e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=159e1e16e80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0ea60ee8ed32/disk-861deac3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6d69fdc33021/vmlinux-861deac3.xz kernel image: https://storage.googleapis.com/syzbot-assets/f0158750d452/bzImage-861deac3.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/dcd887118b46/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6450929faa7a97cd42d1@xxxxxxxxxxxxxxxxxxxxxxxxx REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 1) not found (pos 2) REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ===================================================== BUG: KMSAN: uninit-value in reiserfs_new_inode+0x16cd/0x20f0 fs/reiserfs/inode.c:2044 reiserfs_new_inode+0x16cd/0x20f0 fs/reiserfs/inode.c:2044 reiserfs_create+0x674/0xcb0 fs/reiserfs/namei.c:666 xattr_create fs/reiserfs/xattr.c:70 [inline] xattr_lookup+0x3ee/0x5e0 fs/reiserfs/xattr.c:413 reiserfs_xattr_set_handle+0xe7/0x21b0 fs/reiserfs/xattr.c:535 reiserfs_xattr_set+0x670/0x7f0 fs/reiserfs/xattr.c:635 trusted_set+0x112/0x190 fs/reiserfs/xattr_trusted.c:31 __vfs_setxattr+0x7aa/0x8b0 fs/xattr.c:201 __vfs_setxattr_noperm+0x24f/0xa30 fs/xattr.c:235 __vfs_setxattr_locked+0x441/0x480 fs/xattr.c:296 vfs_setxattr+0x294/0x650 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x45f/0x540 fs/xattr.c:653 path_setxattr+0x1f5/0x3c0 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __x64_sys_setxattr+0xf7/0x180 fs/xattr.c:684 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: __alloc_pages+0x9a4/0xe00 mm/page_alloc.c:4591 alloc_pages_mpol+0x62b/0x9d0 mm/mempolicy.c:2133 alloc_pages+0x1be/0x1e0 mm/mempolicy.c:2204 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab mm/slub.c:2017 [inline] new_slab+0x421/0x1570 mm/slub.c:2070 ___slab_alloc+0x13db/0x33d0 mm/slub.c:3223 __slab_alloc mm/slub.c:3322 [inline] __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc_lru+0x552/0x970 mm/slub.c:3509 alloc_inode_sb include/linux/fs.h:2937 [inline] reiserfs_alloc_inode+0x62/0x150 fs/reiserfs/super.c:642 alloc_inode+0x83/0x440 fs/inode.c:261 iget5_locked+0xa9/0x210 fs/inode.c:1271 reiserfs_fill_super+0x2109/0x39d0 fs/reiserfs/super.c:2053 mount_bdev+0x3d7/0x560 fs/super.c:1650 get_super_block+0x4d/0x60 fs/reiserfs/super.c:2601 legacy_get_tree+0x110/0x290 fs/fs_context.c:662 vfs_get_tree+0xa5/0x520 fs/super.c:1771 do_new_mount+0x68d/0x1550 fs/namespace.c:3337 path_mount+0x73d/0x1f20 fs/namespace.c:3664 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3863 __x64_sys_mount+0xe4/0x140 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5006 Comm: syz-executor185 Not tainted 6.7.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 ===================================================== --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.
