loop0: detected capacity change from 0 to 512
EXT4-fs error (device loop0): ext4_map_blocks:601: inode #2: block 2: comm syz-executor194: lblock 0 mapped to illegal pblock 2 (length 1)
Kernel panic - not syncing: EXT4-fs (device loop0): panic forced after error
CPU: 1 PID: 3073 Comm: syz-executor194 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call trace:
 dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:163
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 panic+0x218/0x508 kernel/panic.c:274
 __ext4_error_inode+0x0/0x1fc fs/ext4/super.c:686
 __ext4_error_inode+0x11c/0x1fc fs/ext4/super.c:809
 ext4_map_blocks+0x4fc/0xaec
 ext4_getblk+0xc4/0x448 fs/ext4/inode.c:858
 ext4_bread+0x3c/0x164 fs/ext4/inode.c:914
 __ext4_read_dirblock+0x74/0x454 fs/ext4/namei.c:144
 dx_probe+0x7c/0x7b0 fs/ext4/namei.c:818
 ext4_dx_find_entry fs/ext4/namei.c:1771 [inline]
 __ext4_find_entry+0x220/0xb4c fs/ext4/namei.c:1616
 ext4_lookup_entry fs/ext4/namei.c:1752 [inline]
 ext4_lookup+0xc0/0x378 fs/ext4/namei.c:1820
 __lookup_slow+0x14c/0x204 fs/namei.c:1685
 lookup_slow fs/namei.c:1702 [inline]
 lookup_one_unlocked+0x28c/0x370 fs/namei.c:2772
 lookup_one_positive_unlocked fs/namei.c:2801 [inline]
 lookup_positive_unlocked+0x3c/0x98 fs/namei.c:2841
 dquot_quota_on_mount+0x44/0xbc fs/quota/dquot.c:2512
 ext4_quota_on_mount fs/ext4/orphan.c:316 [inline]
 ext4_orphan_cleanup+0x2d4/0x8ec fs/ext4/orphan.c:444
 __ext4_fill_super+0x29fc/0x2c2c fs/ext4/super.c:5515
 ext4_fill_super+0x100/0x2d8 fs/ext4/super.c:5643
 get_tree_bdev+0x1e8/0x2a0 fs/super.c:1324
 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5673
 vfs_get_tree+0x40/0x140 fs/super.c:1531
 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040
 path_mount+0x358/0x890 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x00000,040e0108,4c017203
Memory Limit: none
Rebooting in 86400 seconds..