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charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2213e57a69f0 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=12a822e2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=714d45b6135c308e dashboard link: https://syzkaller.appspot.com/bug?extid=c07d47c7bc68f47b9083 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1341fce2580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=144ddd34580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/bf4625d47a8f/disk-2213e57a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/270abffcbf3c/vmlinux-2213e57a.xz kernel image: https://storage.googleapis.com/syzbot-assets/1f0f6eb3e385/Image-2213e57a.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/2f5997142143/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=135f62e2580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c07d47c7bc68f47b9083@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6642 at fs/inode.c:417 drop_nlink+0xe4/0x138 fs/inode.c:417 Modules linked in: CPU: 0 UID: 0 PID: 6642 Comm: syz-executor Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drop_nlink+0xe4/0x138 fs/inode.c:417 lr : drop_nlink+0xe4/0x138 fs/inode.c:417 sp : ffff8000a54b79a0 x29: ffff8000a54b79a0 x28: dfff800000000000 x27: ffff0000efc5d000 x26: dfff800000000000 x25: 0000000200000000 x24: 0000000000000000 x23: 1fffe0001d284485 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000e9422428 x19: ffff0000e94223e0 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000805379bc x15: 0000000000000001 x14: 1fffe0001bd69171 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001bd69172 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cdeb8000 x7 : ffff8000826e1b78 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080537ac4 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: drop_nlink+0xe4/0x138 fs/inode.c:417 (P) f2fs_i_links_write fs/f2fs/f2fs.h:3233 [inline] f2fs_drop_nlink+0x104/0x2e8 fs/f2fs/dir.c:849 f2fs_delete_entry+0x740/0x9a8 fs/f2fs/dir.c:911 f2fs_unlink+0x344/0xa3c fs/f2fs/namei.c:590 f2fs_rmdir+0x5c/0x7c fs/f2fs/namei.c:755 vfs_rmdir+0x328/0x464 fs/namei.c:4461 do_rmdir+0x214/0x4c4 fs/namei.c:4516 __do_sys_unlinkat fs/namei.c:4690 [inline] __se_sys_unlinkat fs/namei.c:4684 [inline] __arm64_sys_unlinkat+0xc8/0xf8 fs/namei.c:4684 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 143176 hardirqs last enabled at (143175): [] seqcount_lockdep_reader_access+0x80/0x104 include/linux/seqlock.h:74 hardirqs last disabled at (143176): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (142090): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (142088): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup