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kernel BUG at fs/ext4/ext4.h:3247!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6368 Comm: syz-executor.1 Not tainted 5.10.179-syzkaller-00312-g571f442f6752 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3247 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xf5d/0x1020 fs/ext4/mballoc.c:1174
Code: ff e8 27 3b c8 ff e9 f0 f2 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 52 f3 ff ff e8 2d 3b c8 ff e9 48 f3 ff ff e8 43 2a 8b ff <0f> 0b e9 62 00 00 00 e8 37 2a 8b ff e9 ef fb ff ff e9 65 00 00 00
RSP: 0018:ffffc90000ca7710 EFLAGS: 00010293
RAX: ffffffff81df4fed RBX: 00000000ffff3b6c RCX: ffff888112e68000
RDX: 0000000000000000 RSI: 00000000ffff3b6c RDI: 0000000000000001
RBP: ffffc90000ca7790 R08: ffffffff81df417c R09: ffffed102ab5e14d
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888114f23000 R14: 1ffff11024314c79 R15: ffff8881218a63c8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ea2fa5058 CR3: 000000011db7a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_discard_preallocations+0x79c/0xef0 fs/ext4/mballoc.c:4451
 ext4_release_file+0x16e/0x310 fs/ext4/file.c:152
 __fput+0x309/0x760 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x129/0x190 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xc83/0x2a50 kernel/exit.c:861
 do_group_exit+0x141/0x310 kernel/exit.c:983
 get_signal+0x10a0/0x1410 kernel/signal.c:2782
 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
 syscall_exit_to_user_mode+0xbc/0x1d0 kernel/entry/common.c:274
 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f769b807389
Code: Unable to access opcode bytes at RIP 0x7f769b80735f.
RSP: 002b:00007f7692157168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000040 RBX: 00007f769b9271f0 RCX: 00007f769b807389
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000008
RBP: 00007f769b852493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcac2c024f R14: 00007f7692157300 R15: 0000000000022000
Modules linked in:
---[ end trace c47477b35b4e10d7 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3247 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xf5d/0x1020 fs/ext4/mballoc.c:1174
Code: ff e8 27 3b c8 ff e9 f0 f2 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 52 f3 ff ff e8 2d 3b c8 ff e9 48 f3 ff ff e8 43 2a 8b ff <0f> 0b e9 62 00 00 00 e8 37 2a 8b ff e9 ef fb ff ff e9 65 00 00 00
RSP: 0018:ffffc90000ca7710 EFLAGS: 00010293
RAX: ffffffff81df4fed RBX: 00000000ffff3b6c RCX: ffff888112e68000
RDX: 0000000000000000 RSI: 00000000ffff3b6c RDI: 0000000000000001
RBP: ffffc90000ca7790 R08: ffffffff81df417c R09: ffffed102ab5e14d
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888114f23000 R14: 1ffff11024314c79 R15: ffff8881218a63c8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ea2fa5058 CR3: 000000011db7a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400