loop2: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
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WARNING: CPU: 0 PID: 4648 at fs/inode.c:332 drop_nlink+0xe4/0x138 fs/inode.c:332
Modules linked in:
CPU: 0 PID: 4648 Comm: syz.2.68 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : drop_nlink+0xe4/0x138 fs/inode.c:332
lr : drop_nlink+0xe4/0x138 fs/inode.c:332
sp : ffff800020be7560
x29: ffff800020be7560 x28: ffff0000de945318 x27: ffff800020be76f0
x26: ffff800020be77c0 x25: dfff800000000000 x24: ffff0000f5648ea0
x23: 1fffe0001eac9101 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000f5648808 x19: ffff0000f56487c0 x18: 0000000000000000
x17: 000000000000001c x16: ffff8000082d25b8 x15: 0000000000000002
x14: 000000003b9aca00 x13: 0000000000ff0100 x12: 0000000000080000
x11: 0000000000012f57 x10: ffff80002b181000 x9 : ffff8000089fc34c
x8 : 0000000000012f58 x7 : ffff800008a035bc x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 drop_nlink+0xe4/0x138 fs/inode.c:332
 inode_dec_link_count include/linux/fs.h:2582 [inline]
 udf_rename+0x838/0xa10 fs/udf/namei.c:850
 vfs_rename+0x954/0xdcc fs/namei.c:4882
 do_renameat2+0x738/0xa54 fs/namei.c:5035
 __do_sys_renameat2 fs/namei.c:5068 [inline]
 __se_sys_renameat2 fs/namei.c:5065 [inline]
 __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5065
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 6904
hardirqs last  enabled at (6903): [<ffff8000083bf5bc>] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
hardirqs last  enabled at (6903): [<ffff8000083bf5bc>] ktime_get_coarse_real_ts64+0x114/0x244 kernel/time/timekeeping.c:2261
hardirqs last disabled at (6904): [<ffff80001195c1f0>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (6612): [<ffff8000080309e0>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (6610): [<ffff8000080309ac>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---