EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs error (device loop2): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 8184 vs 21 free clusters ------------[ cut here ]------------ WARNING: CPU: 0 PID: 28812 at fs/ext4/xattr.c:1660 ext4_xattr_set_entry+0x24c1/0x30f0 fs/ext4/xattr.c:1660 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 28812 Comm: syz-executor.2 Not tainted 4.14.218-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:186 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:ext4_xattr_set_entry+0x24c1/0x30f0 fs/ext4/xattr.c:1660 RSP: 0018:ffff888064ec74b0 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff8880a9063b20 RCX: ffffc90007fc9000 RDX: 00000000000188fe RSI: ffffffff81c74811 RDI: ffff8880a41e0460 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000003 R10: 0000000000000000 R11: ffff8880aaeaa240 R12: 00000000000003dc R13: ffffffff87933440 R14: 0000000000000000 R15: ffff888064ec77a8 ext4_xattr_block_set+0x1334/0x2af0 fs/ext4/xattr.c:1962 ext4_xattr_set_handle+0x839/0xd20 fs/ext4/xattr.c:2410 ext4_xattr_set+0x118/0x230 fs/ext4/xattr.c:2510 __vfs_setxattr+0xdc/0x130 fs/xattr.c:150 __vfs_setxattr_noperm+0xfd/0x3d0 fs/xattr.c:181 __vfs_setxattr_locked+0x14d/0x250 fs/xattr.c:239 vfs_setxattr+0xcf/0x230 fs/xattr.c:256 setxattr+0x1a9/0x300 fs/xattr.c:523 path_setxattr+0x118/0x130 fs/xattr.c:542 SYSC_setxattr fs/xattr.c:557 [inline] SyS_setxattr+0x36/0x50 fs/xattr.c:553 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007fe0f630f188 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080 RBP: 00000000004b069f R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007fffa034eeef R14: 00007fe0f630f300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..