EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
ext4 filesystem being mounted at /root/syzkaller-testdir1852134511/syzkaller.b1GLfv/639/file1 supports timestamps until 2038 (0x7fffffff)
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:3247!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 29393 Comm: syz-executor.2 Tainted: G        W         5.10.178-syzkaller-00238-g8a30c9beebe8 #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 47 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 4d 3b c8 ff e9 48 f3 ff ff e8 e3 2a 8b ff <0f> 0b e9 62 00 00 00 e8 d7 2a 8b ff e9 ef fb ff ff e9 65 00 00 00
RSP: 0018:ffffc900013c7710 EFLAGS: 00010293
RAX: ffffffff81df4ecd RBX: 000000001e115969 RCX: ffff88811b3e3b40
RDX: 0000000000000000 RSI: 000000001e115969 RDI: 0000000000000001
RBP: ffffc900013c7790 R08: ffffffff81df405c R09: ffffed102fdc6ae6
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888183e7c000 R14: 1ffff110307cf679 R15: ffff888183e7b3c8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f155d08b988 CR3: 000000010ceb1000 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: 0033:0x7f5ee2992389
Code: Unable to access opcode bytes at RIP 0x7f5ee299235f.
RSP: 002b:00007f5ee1705218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f5ee2ab1f88 RCX: 00007f5ee2992389
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f5ee2ab1f8c
RBP: 00007f5ee2ab1f80 R08: 00007ffc141f70b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5ee2ab1f8c
R13: 00007ffc141b18ef R14: 00007f5ee1705300 R15: 0000000000022000
Modules linked in:
---[ end trace 557952a942aee45c ]---
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 47 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 4d 3b c8 ff e9 48 f3 ff ff e8 e3 2a 8b ff <0f> 0b e9 62 00 00 00 e8 d7 2a 8b ff e9 ef fb ff ff e9 65 00 00 00
RSP: 0018:ffffc900013c7710 EFLAGS: 00010293
RAX: ffffffff81df4ecd RBX: 000000001e115969 RCX: ffff88811b3e3b40
RDX: 0000000000000000 RSI: 000000001e115969 RDI: 0000000000000001
RBP: ffffc900013c7790 R08: ffffffff81df405c R09: ffffed102fdc6ae6
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888183e7c000 R14: 1ffff110307cf679 R15: ffff888183e7b3c8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c025f22000 CR3: 0000000115094000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400