------------[ cut here ]------------ VFS: Found a V7 FS (block size = 512) on device loop3 WARNING: CPU: 0 PID: 27120 at fs/inode.c:343 inc_nlink.cold+0x11/0x18 fs/inode.c:343 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 27120 Comm: syz-executor.2 Not tainted 4.19.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. __warn.cold+0x20/0x61 kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:inc_nlink.cold+0x11/0x18 fs/inode.c:343 Code: c0 74 04 3c 03 7e 08 8b 5d 48 e9 65 7e ff ff 4c 89 e7 e8 68 94 ee ff eb ee e8 31 6c b8 ff 48 c7 c7 c0 a9 74 88 e8 14 66 a3 ff <0f> 0b e9 a7 7f ff ff e8 19 6c b8 ff 48 8d 7b 40 b8 ff ff 37 00 48 RSP: 0018:ffff8880302ffdf0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff88803deb3b48 RCX: 0000000000000000 RDX: 000000000000c408 RSI: ffffffff814fde01 RDI: ffffed100605ffb0 RBP: 0000000000000000 R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff88803deb3b90 R13: ffff88808dcf6ca0 R14: 000000000000007e R15: 0000000000000100 inode_inc_link_count include/linux/fs.h:2102 [inline] sysv_mkdir+0x21/0x150 fs/sysv/namei.c:131 vfs_mkdir+0x508/0x7a0 fs/namei.c:3819 do_mkdirat+0x262/0x2d0 fs/namei.c:3842 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0695432c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000000045e219 RDX: 0000000000000000 RSI: 0000000000000110 RDI: 0000000020000a40 RBP: 000000000119bfb8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007ffeccdf428f R14: 00007f06954339c0 R15: 000000000119bf8c Kernel Offset: disabled Rebooting in 86400 seconds..