EXT4-fs (loop0): Unrecognized mount option "ÿÿÿÿ" or missing value
EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended
EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended
EXT4-fs warning (device loop0): ext4_update_dynamic_rev:864: updating to rev 1 because of new feature flag, running e2fsck is recommended
EXT4-fs error (device loop0): ext4_validate_block_bitmap:409: comm syz-executor.0: bg 0: block 46: invalid block bitmap
Kernel panic - not syncing: EXT4-fs (device loop0): panic forced after error
CPU: 1 PID: 435 Comm: syz-executor.0 Not tainted 5.4.278-syzkaller-04929-g8edc449e71a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 panic+0x309/0x89d kernel/panic.c:285
 ext4_handle_error+0x3c2/0x3d0 fs/ext4/super.c:486
 __ext4_error+0x1f9/0x490 fs/ext4/super.c:515
 ext4_validate_block_bitmap+0xa8c/0xcd0 fs/ext4/balloc.c:408
 ext4_read_block_bitmap+0x3a/0x80 fs/ext4/balloc.c:563
 ext4_free_blocks+0x960/0x2310 fs/ext4/mballoc.c:4875
 ext4_remove_blocks fs/ext4/extents.c:2726 [inline]
 ext4_ext_rm_leaf fs/ext4/extents.c:2879 [inline]
 ext4_ext_remove_space+0x2758/0x4ba0 fs/ext4/extents.c:3124
 ext4_truncate+0xb23/0x1290 fs/ext4/inode.c:4641
 ext4_orphan_cleanup+0x8bc/0xd40 fs/ext4/super.c:2808
 ext4_fill_super+0x8592/0x8d90 fs/ext4/super.c:4715
 mount_bdev+0x267/0x370 fs/super.c:1426
 legacy_get_tree+0xdf/0x170 fs/fs_context.c:648
 vfs_get_tree+0x85/0x260 fs/super.c:1556
 do_new_mount+0x292/0x570 fs/namespace.c:2843
 do_mount+0x688/0xe10 fs/namespace.c:3163
 ksys_mount+0xc2/0xf0 fs/namespace.c:3372
 __do_sys_mount fs/namespace.c:3386 [inline]
 __se_sys_mount fs/namespace.c:3383 [inline]
 __x64_sys_mount+0xb1/0xc0 fs/namespace.c:3383
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f5ca1e48ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5ca19cb0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5ca1f67f80 RCX: 00007f5ca1e48ae9
RDX: 00000000200001c0 RSI: 00000000200006c0 RDI: 0000000020000640
RBP: 00007f5ca1e9447a R08: 0000000000000000 R09: 0000000000000000
R10: 000000003f000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5ca1f67f80 R15: 00007fff571b67b8
Kernel Offset: disabled
Rebooting in 86400 seconds..