------------[ cut here ]------------ kernel BUG at fs/ext4/super.c:6436! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 16264 Comm: syz-executor213 Not tainted 5.10.237-syzkaller-1007464-g7e2543346ff7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:ext4_quota_enable fs/ext4/super.c:6436 [inline] RIP: 0010:ext4_enable_quotas+0x6c7/0x6d0 fs/ext4/super.c:6483 Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a6 fa ff ff 4c 89 f7 e8 58 fe c0 ff e9 99 fa ff ff e8 9e e5 92 02 e8 a9 0e 87 ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 RSP: 0018:ffffc9000469f950 EFLAGS: 00010293 RAX: ffffffff81dc8457 RBX: ffff88811584d000 RCX: ffff8881227e0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000469f9f0 R08: dffffc0000000000 R09: ffffed1024361356 R10: ffffed1024361356 R11: 1ffff11024361355 R12: 0000000000000004 R13: ffff88810da61464 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f38cbd8b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38cbe22a18 CR3: 00000001228b4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_fill_super+0x82a9/0x8b60 fs/ext4/super.c:5060 mount_bdev+0x28b/0x3a0 fs/super.c:1442 ext4_mount+0x34/0x40 fs/ext4/super.c:6662 legacy_get_tree+0xed/0x190 fs/fs_context.c:593 vfs_get_tree+0x89/0x260 fs/super.c:1572 do_new_mount+0x25a/0xa20 fs/namespace.c:2918 path_mount+0x572/0xc80 fs/namespace.c:3248 do_mount fs/namespace.c:3261 [inline] __do_sys_mount fs/namespace.c:3469 [inline] __se_sys_mount+0x318/0x380 fs/namespace.c:3446 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3446 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f38cbdd035a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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:00007f38cbd8b038 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f38cbdd035a RDX: 00000000200005c0 RSI: 0000000020000000 RDI: 00007f38cbd8b090 RBP: 00000000200005c0 R08: 00007f38cbd8b0d0 R09: 00000000000004d4 R10: 0000000000200810 R11: 0000000000000206 R12: 00007f38cbd8b090 R13: 0000000020000000 R14: 00000000000004da R15: 00007f38cbd8b0d0 Modules linked in: ---[ end trace 9406fadeab4f3aa5 ]--- RIP: 0010:ext4_quota_enable fs/ext4/super.c:6436 [inline] RIP: 0010:ext4_enable_quotas+0x6c7/0x6d0 fs/ext4/super.c:6483 Code: ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a6 fa ff ff 4c 89 f7 e8 58 fe c0 ff e9 99 fa ff ff e8 9e e5 92 02 e8 a9 0e 87 ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 RSP: 0018:ffffc9000469f950 EFLAGS: 00010293 RAX: ffffffff81dc8457 RBX: ffff88811584d000 RCX: ffff8881227e0000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000469f9f0 R08: dffffc0000000000 R09: ffffed1024361356 R10: ffffed1024361356 R11: 1ffff11024361355 R12: 0000000000000004 R13: ffff88810da61464 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f38cbd8b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38cbe22a18 CR3: 00000001228b4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400