EXT4-fs error (device loop0): ext4_fill_super:4612: inode #2: comm syz-executor.0: casefold flag without casefold feature
EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended
------------[ cut here ]------------
kernel BUG at fs/ext4/extents_status.c:205!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 434 Comm: syz-executor.0 Not tainted 5.4.276-syzkaller-04917-g58de09405d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:ext4_es_end fs/ext4/extents_status.c:205 [inline]
RIP: 0010:__es_tree_search fs/ext4/extents_status.c:223 [inline]
RIP: 0010:ext4_es_cache_extent+0x4c2/0x640 fs/ext4/extents_status.c:957
Code: d0 ff e9 fc fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 76 fe ff ff 4c 89 f7 e8 c8 da d0 ff e9 69 fe ff ff e8 1e f6 a0 ff <0f> 0b 4c 89 7c 24 18 65 8b 1d 48 ee 3e 7e 89 d8 c1 e8 06 48 8d 3c
RSP: 0018:ffff8881d947ede0 EFLAGS: 00010293
RAX: ffffffff81c342e2 RBX: 0000000000000000 RCX: ffff8881f31c9f80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881d947eee8 R08: ffffffff81c3404e R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff1103cf91dbc
R13: dffffc0000000000 R14: ffff8881e7c8ede4 R15: 0000000000000001
FS:  00007fdcffc716c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005636b9019008 CR3: 00000001f1fef000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_cache_extents fs/ext4/extents.c:556 [inline]
 ext4_find_extent+0x4e1/0xda0 fs/ext4/extents.c:952
 ext4_ext_map_blocks+0x289/0x7450 fs/ext4/extents.c:4330
 ext4_map_blocks+0x3a4/0x1ba0 fs/ext4/inode.c:584
 ext4_getblk+0x112/0x540 fs/ext4/inode.c:985
 ext4_bread+0x89/0x390 fs/ext4/inode.c:1035
 ext4_quota_read+0x180/0x280 fs/ext4/super.c:6187
 v2_read_header fs/quota/quota_v2.c:64 [inline]
 v2_check_quota_file+0xf7/0x490 fs/quota/quota_v2.c:83
 dquot_load_quota_sb+0x6af/0xc00 fs/quota/dquot.c:2455
 vfs_load_quota_inode+0x40b/0x6a0 fs/quota/dquot.c:2499
 ext4_quota_enable fs/ext4/super.c:6066 [inline]
 ext4_enable_quotas+0x5a8/0x940 fs/ext4/super.c:6092
 ext4_fill_super+0x84f0/0x8d90 fs/ext4/super.c:4708
 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: 0033:0x7fdd000f04aa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007fdcffc70ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fdcffc70f80 RCX: 00007fdd000f04aa
RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007fdcffc70f40
RBP: 00000000200004c0 R08: 00007fdcffc70f80 R09: 000000000000000c
R10: 000000000000000c R11: 0000000000000246 R12: 0000000020000500
R13: 00007fdcffc70f40 R14: 00000000000004e3 R15: 0000000020000000
Modules linked in:
---[ end trace a09d5f359ee9a22c ]---
RIP: 0010:ext4_es_end fs/ext4/extents_status.c:205 [inline]
RIP: 0010:__es_tree_search fs/ext4/extents_status.c:223 [inline]
RIP: 0010:ext4_es_cache_extent+0x4c2/0x640 fs/ext4/extents_status.c:957
Code: d0 ff e9 fc fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 76 fe ff ff 4c 89 f7 e8 c8 da d0 ff e9 69 fe ff ff e8 1e f6 a0 ff <0f> 0b 4c 89 7c 24 18 65 8b 1d 48 ee 3e 7e 89 d8 c1 e8 06 48 8d 3c
RSP: 0018:ffff8881d947ede0 EFLAGS: 00010293
RAX: ffffffff81c342e2 RBX: 0000000000000000 RCX: ffff8881f31c9f80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881d947eee8 R08: ffffffff81c3404e R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff1103cf91dbc
R13: dffffc0000000000 R14: ffff8881e7c8ede4 R15: 0000000000000001
FS:  00007fdcffc716c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005636b9019008 CR3: 00000001f1fef000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400