------------[ cut here ]------------ WARNING: CPU: 0 PID: 28547 at fs/inode.c:360 inc_nlink+0x11e/0x130 fs/inode.c:360 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 28547 Comm: syz-executor.0 Not tainted 5.8.0-rc3-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+0x1f0/0x31e lib/dump_stack.c:118 panic+0x264/0x7a0 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:235 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563 RIP: 0010:inc_nlink+0x11e/0x130 fs/inode.c:360 Code: ef ff e9 38 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 49 ff ff ff 4c 89 ef e8 5c d3 ef ff e9 3c ff ff ff e8 72 d4 b0 ff <0f> 0b eb 80 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 RSP: 0018:ffffc90016647dd0 EFLAGS: 00010287 RAX: ffffffff81c3a79e RBX: 1ffff11041e02819 RCX: 0000000000040000 RDX: ffffc90001e69000 RSI: 0000000000004b43 RDI: 0000000000004b44 RBP: 0000000000000000 R08: ffffffff81c3a718 R09: ffffc90016647dc0 R10: fffff52002cc8fbc R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88820f0140c8 R14: ffff88820f014080 R15: 0000000000000000 inode_inc_link_count include/linux/fs.h:2207 [inline] minix_mkdir+0x3b/0x200 fs/minix/namei.c:117 vfs_mkdir+0x42a/0x620 fs/namei.c:3641 do_mkdirat+0x1b9/0x310 fs/namei.c:3664 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb29 Code: Bad RIP value. RSP: 002b:00007fe6d92bec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00000000004f6ba0 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000754 R14: 00000000004c261c R15: 00007fe6d92bf6d4 Kernel Offset: disabled Rebooting in 86400 seconds..