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charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: bf45a62baffc 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=113b0c58580000 kernel config: https://syzkaller.appspot.com/x/.config?x=bd2356106f507975 dashboard link: https://syzkaller.appspot.com/bug?extid=632cf32276a9a564188d 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=100a3892580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=151c5b34580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f0d4874557e9/disk-bf45a62b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0bf44a13b5b2/vmlinux-bf45a62b.xz kernel image: https://storage.googleapis.com/syzbot-assets/18db8bc9907c/Image-bf45a62b.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/33a03f772bd8/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=15cce542580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+632cf32276a9a564188d@syzkaller.appspotmail.com F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 F2FS-fs (loop0): Corrupted max_depth of 3: 16842753 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6707 at fs/inode.c:417 drop_nlink+0xe4/0x138 fs/inode.c:417 Modules linked in: CPU: 0 UID: 0 PID: 6707 Comm: syz.0.17 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 : ffff80009e187740 x29: ffff80009e187740 x28: 0000000000000000 x27: ffff0000d416503f x26: ffff0000f68508f8 x25: ffff0000f69f08f8 x24: 0000000000000000 x23: 1fffe0001ed0a247 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000f6851238 x19: ffff0000f68511f0 x18: 00000000ffffffff x17: ffff800093605000 x16: ffff800080528494 x15: 0000000000000001 x14: 1fffe0001ed0a2d5 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001ed0a2d6 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c7453d00 x7 : ffff80008269f9fc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008052866c 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_rename fs/f2fs/namei.c:1017 [inline] f2fs_rename2+0x1288/0x1fb4 fs/f2fs/namei.c:1290 vfs_rename+0x934/0xce0 fs/namei.c:5129 do_renameat2+0x614/0x8c8 fs/namei.c:5278 __do_sys_renameat2 fs/namei.c:5312 [inline] __se_sys_renameat2 fs/namei.c:5309 [inline] __arm64_sys_renameat2+0xd8/0xf4 fs/namei.c:5309 __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: 170020 hardirqs last enabled at (170019): [] seqcount_lockdep_reader_access+0x7c/0xf8 include/linux/seqlock.h:74 hardirqs last disabled at (170020): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (169238): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (169236): [] 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