loop5: detected capacity change from 0 to 512
------------[ cut here ]------------
kernel BUG at fs/ext4/super.c:7000!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 19837 Comm: syz-executor.5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:ext4_quota_enable fs/ext4/super.c:7000 [inline]
RIP: 0010:ext4_enable_quotas+0x6c9/0x6d0 fs/ext4/super.c:7047
Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a4 fa ff ff 4c 89 f7 e8 36 2b bf ff e9 97 fa ff ff e8 0c 0d f8 02 e8 67 bd 7a ff <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 11 c0 4f
RSP: 0018:ffffc90000e778f0 EFLAGS: 00010293
RAX: ffffffff81f56099 RBX: ffff888117c73000 RCX: ffff88811c146540
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e77990 R08: dffffc0000000000 R09: ffffed10249edb15
R10: ffffed10249edb15 R11: 1ffff110249edb14 R12: 0000000000000004
R13: ffff8881277f9464 R14: 0000000000000000 R15: 0000000000000001
FS:  00007fedb76f66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff65410fd8 CR3: 0000000121c6c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ext4_fill_super fs/ext4/super.c:5510 [inline]
 ext4_fill_super+0x70fc/0x7970 fs/ext4/super.c:5655
 get_tree_bdev+0x444/0x680 fs/super.c:1368
 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5685
 vfs_get_tree+0x9a/0x270 fs/super.c:1575
 do_new_mount+0x25a/0xa20 fs/namespace.c:3069
 path_mount+0x675/0x1010 fs/namespace.c:3399
 do_mount fs/namespace.c:3412 [inline]
 __do_sys_mount fs/namespace.c:3620 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3597
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3597
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fedb6a7e1ea
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:00007fedb76f5ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fedb76f5f80 RCX: 00007fedb6a7e1ea
RDX: 00000000200005c0 RSI: 0000000020000000 RDI: 00007fedb76f5f40
RBP: 00000000200005c0 R08: 00007fedb76f5f80 R09: 0000000000200810
R10: 0000000000200810 R11: 0000000000000246 R12: 0000000020000000
R13: 00007fedb76f5f40 R14: 00000000000004da R15: 0000000020001400
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_quota_enable fs/ext4/super.c:7000 [inline]
RIP: 0010:ext4_enable_quotas+0x6c9/0x6d0 fs/ext4/super.c:7047
Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a4 fa ff ff 4c 89 f7 e8 36 2b bf ff e9 97 fa ff ff e8 0c 0d f8 02 e8 67 bd 7a ff <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 b8 11 c0 4f
RSP: 0018:ffffc90000e778f0 EFLAGS: 00010293
RAX: ffffffff81f56099 RBX: ffff888117c73000 RCX: ffff88811c146540
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000e77990 R08: dffffc0000000000 R09: ffffed10249edb15
R10: ffffed10249edb15 R11: 1ffff110249edb14 R12: 0000000000000004
R13: ffff8881277f9464 R14: 0000000000000000 R15: 0000000000000001
FS:  00007fedb76f66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8599b78038 CR3: 0000000121c6c000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400