syzbot


WARNING in reiserfs_mkdir

Status: upstream: reported C repro on 2025/02/12 06:02
Reported-by: syzbot+ba2d09277704171df177@syzkaller.appspotmail.com
First crash: 27d, last: 13d
Bug presence (1)
Date Name Commit Repro Result
2025/02/27 upstream (ToT) f4ce1f3318ad C Failed due to an error; will retry later
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in reiserfs_mkdir origin:lts-only C error 4 61d 92d 0/3 upstream: reported C repro on 2024/12/09 11:21
Last patch testing requests (1)
Created Duration User Patch Repo Result
2025/02/26 10:15 13m retest repro linux-5.15.y report log

Sample crash report:
REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using r5 hash to sort names
REISERFS (device loop0): using 3.5.x disk format
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4018 at fs/inode.c:307 drop_nlink+0xe8/0x148 fs/inode.c:307
Modules linked in:
CPU: 1 PID: 4018 Comm: syz-executor407 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : drop_nlink+0xe8/0x148 fs/inode.c:307
lr : drop_nlink+0xe8/0x148 fs/inode.c:307
sp : ffff8000200d7500
x29: ffff8000200d7500 x28: ffff70000401aeb0 x27: dfff800000000000
x26: ffff0000ddea01d8 x25: 00000000ffffffff x24: 1fffe0001bbd4037
x23: 1fffe0001bbd403b x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000ddea01d8 x19: ffff0000ddea0190 x18: ffff8000200d69a0
x17: 0000000000000000 x16: ffff8000082ec940 x15: ffff800008a103d4
x14: ffff800008a0ccf8 x13: ffff80000805d4a8 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000cae7d1c0
x8 : ffff8000089e9d6c x7 : 0000000000000000 x6 : ffff80000805d4a8
x5 : ffff0000d9953af8 x4 : 0000000000000000 x3 : ffff800008046154
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 drop_nlink+0xe8/0x148 fs/inode.c:307
 reiserfs_mkdir+0x5e0/0x77c fs/reiserfs/namei.c:850
 xattr_mkdir fs/reiserfs/xattr.c:76 [inline]
 create_privroot fs/reiserfs/xattr.c:889 [inline]
 reiserfs_xattr_init+0x2b0/0x6dc fs/reiserfs/xattr.c:1012
 reiserfs_fill_super+0x1b28/0x1e8c fs/reiserfs/super.c:2179
 mount_bdev+0x274/0x370 fs/super.c:1400
 get_super_block+0x44/0x58 fs/reiserfs/super.c:2608
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x278/0x8fc fs/namespace.c:3012
 path_mount+0x594/0x101c fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 19162
hardirqs last  enabled at (19161): [<ffff800008377878>] __call_rcu kernel/rcu/tree.c:3041 [inline]
hardirqs last  enabled at (19161): [<ffff800008377878>] call_rcu+0x644/0xb40 kernel/rcu/tree.c:3087
hardirqs last disabled at (19162): [<ffff800011b49ab0>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (19120): [<ffff8000081b6920>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (19120): [<ffff8000081b6920>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (19103): [<ffff8000081b6fb8>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (19103): [<ffff8000081b6fb8>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (19103): [<ffff8000081b6fb8>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (19103): [<ffff8000081b6fb8>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
---[ end trace 820d0bb087eb69fd ]---
REISERFS warning (device loop0): jdm-20006 create_privroot: xattrs/ACLs enabled and couldn't find/create .reiserfs_priv. Failing mount.

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/12 06:02 linux-5.15.y c16c81c81336 f2baddf5 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan-arm64 WARNING in reiserfs_mkdir
* Struck through repros no longer work on HEAD.