------------[ cut here ]------------ WARNING: CPU: 0 PID: 7979 at fs/inode.c:342 inc_nlink+0x113/0x130 fs/inode.c:342 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7979 Comm: syz-executor255 Not tainted 4.14.259-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:inc_nlink+0x113/0x130 fs/inode.c:342 RSP: 0018:ffff8880b31c7c80 EFLAGS: 00010297 RAX: ffff888096f680c0 RBX: ffff8880a42d9680 RCX: 0000000000000452 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a42d9758 RBP: 0000000000000000 R08: ffffffff8b99fd50 R09: 000000000004057d R10: ffff888096f689c0 R11: ffff888096f680c0 R12: ffff8880a42d96c8 R13: 0000000000000000 R14: ffff8880986aa480 R15: 0000000000000005 fuse_link+0x32c/0x4b0 fs/fuse/dir.c:842 vfs_link+0x6d5/0xb40 fs/namei.c:4264 SYSC_linkat fs/namei.c:4332 [inline] SyS_linkat+0x3e5/0x6a0 fs/namei.c:4288 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fd52fff0b79 RSP: 002b:00007fd52ffa22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056 RAX: ffffffffffffffda RBX: 00007fd5300814c0 RCX: 00007fd52fff0b79 RDX: 00007fd52fff0b79 RSI: 0000000020000080 RDI: 0000000020000040 RBP: 00007fd53004f0e4 R08: 0000000000003065 R09: 0000000000000000 R10: 0000000000003065 R11: 0000000000000246 R12: 00007fd5300490d0 R13: 00007fd53004b0d8 R14: 00007fd53004d0e0 R15: 00007fd5300814c8 Kernel Offset: disabled Rebooting in 86400 seconds..