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kernel BUG at fs/ext4/ext4.h:3248!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 24807 Comm: syz-executor.3 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3248 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xe54/0xec0 fs/ext4/mballoc.c:1174
Code: ff e8 40 13 c8 ff e9 c8 f3 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 14 f4 ff ff e8 46 13 c8 ff e9 0a f4 ff ff e8 ec 10 8e ff <0f> 0b e8 e5 10 8e ff 4c 89 ef e8 5d 64 cd ff e9 34 fc ff ff e8 d3
RSP: 0018:ffffc9000642f818 EFLAGS: 00010293
RAX: ffffffff81df10c4 RBX: 0000000000000001 RCX: ffff88817a630000
RDX: 0000000000000000 RSI: 00000000fffce45c RDI: 0000000000000001
RBP: ffffc9000642f8b0 R08: ffffffff81df034c R09: ffffed102d907678
R10: ffffed102d907678 R11: 1ffff1102d907677 R12: 1ffff11021fe7e79
R13: ffff8881650f7000 R14: 00000000fffce45c R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000201ef030 CR3: 000000000620f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_discard_preallocations+0x803/0xf10 fs/ext4/mballoc.c:4451
 ext4_release_file+0x17a/0x320 fs/ext4/file.c:152
 __fput+0x348/0x7c0 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x147/0x1b0 kernel/task_work.c:154
 exit_task_work include/linux/task_work.h:30 [inline]
 do_exit+0x63c/0x2340 kernel/exit.c:813
 do_group_exit+0x13a/0x300 kernel/exit.c:910
 get_signal+0xe17/0x1440 kernel/signal.c:2780
 arch_do_signal+0x8e/0x650 arch/x86/kernel/signal.c:805
 exit_to_user_mode_loop+0xa3/0xe0 kernel/entry/common.c:161
 exit_to_user_mode_prepare kernel/entry/common.c:191 [inline]
 syscall_exit_to_user_mode+0x77/0xa0 kernel/entry/common.c:266
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7fbace1d4169
Code: Unable to access opcode bytes at RIP 0x7fbace1d413f.
RSP: 002b:00007fbaccf47168 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: fffffffffffffe00 RBX: 00007fbace2f3f80 RCX: 00007fbace1d4169
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007fbace22fca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff937509ef R14: 00007fbaccf47300 R15: 0000000000022000
Modules linked in:
---[ end trace 23e49a9d53f09897 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3248 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xe54/0xec0 fs/ext4/mballoc.c:1174
Code: ff e8 40 13 c8 ff e9 c8 f3 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 14 f4 ff ff e8 46 13 c8 ff e9 0a f4 ff ff e8 ec 10 8e ff <0f> 0b e8 e5 10 8e ff 4c 89 ef e8 5d 64 cd ff e9 34 fc ff ff e8 d3
RSP: 0018:ffffc9000642f818 EFLAGS: 00010293
RAX: ffffffff81df10c4 RBX: 0000000000000001 RCX: ffff88817a630000
RDX: 0000000000000000 RSI: 00000000fffce45c RDI: 0000000000000001
RBP: ffffc9000642f8b0 R08: ffffffff81df034c R09: ffffed102d907678
R10: ffffed102d907678 R11: 1ffff1102d907677 R12: 1ffff11021fe7e79
R13: ffff8881650f7000 R14: 00000000fffce45c R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0b5ab1b058 CR3: 00000001073f2000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400