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kernel BUG at fs/ext4/ext4.h:2869!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12116 Comm: syz-executor253 Not tainted 4.19.157-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2869 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0x1460/0x1a90 fs/ext4/mballoc.c:1116
Code: 26 be 9d ff e9 b9 f6 ff ff e8 8c 66 7e ff e9 b4 f4 ff ff e8 82 66 7e ff 48 89 ef e8 0a be 9d ff e9 51 fa ff ff e8 70 66 7e ff <0f> 0b e8 69 66 7e ff 8b 54 24 1c 44 89 e6 48 89 ef e8 da d4 ff ff
RSP: 0018:ffff88808cc27c18 EFLAGS: 00010293
RAX: ffff8880af948500 RBX: ffff88808cc27d58 RCX: ffffffff81e655a3
RDX: 0000000000000000 RSI: ffffffff81e668f0 RDI: 0000000000000004
RBP: ffff88809e2c6c40 R08: 0000000000000000 R09: 00000000fffcef43
R10: 0000000000000004 R11: 0000000000000000 R12: 00000000fffcef43
R13: ffff888093aacc80 R14: ffff88809e2c72c0 R15: 0000000000000001
FS:  000000000181c880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000018258b8 CR3: 00000000b3325000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_discard_preallocations+0xaf4/0xfb0 fs/ext4/mballoc.c:4089
 ext4_release_file+0x2b8/0x340 fs/ext4/file.c:98
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x406581
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 64 19 00 00 c3 48 83 ec 08 e8 6a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffe00567d40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000406581
RDX: fffffffffffffff7 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00000000006dec8c R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000001e327
R13: 0000000000000002 R14: 20c49ba5e353f7cf R15: 0000000000000009
Modules linked in:
---[ end trace 8c00c437fe3fb7fa ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2869 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0x1460/0x1a90 fs/ext4/mballoc.c:1116
Code: 26 be 9d ff e9 b9 f6 ff ff e8 8c 66 7e ff e9 b4 f4 ff ff e8 82 66 7e ff 48 89 ef e8 0a be 9d ff e9 51 fa ff ff e8 70 66 7e ff <0f> 0b e8 69 66 7e ff 8b 54 24 1c 44 89 e6 48 89 ef e8 da d4 ff ff
RSP: 0018:ffff88808cc27c18 EFLAGS: 00010293
RAX: ffff8880af948500 RBX: ffff88808cc27d58 RCX: ffffffff81e655a3
RDX: 0000000000000000 RSI: ffffffff81e668f0 RDI: 0000000000000004
RBP: ffff88809e2c6c40 R08: 0000000000000000 R09: 00000000fffcef43
R10: 0000000000000004 R11: 0000000000000000 R12: 00000000fffcef43
R13: ffff888093aacc80 R14: ffff88809e2c72c0 R15: 0000000000000001
FS:  000000000181c880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 00000000b3325000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400