EXT4-fs warning (device loop0): ext4_update_dynamic_rev:793: updating to rev 1 because of new feature flag, running e2fsck is recommended
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:2849!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7974 Comm: syz-executor360 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
task: ffff888097072340 task.stack: ffff88809bbf0000
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2849 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0x10dd/0x16c0 fs/ext4/mballoc.c:1128
RSP: 0018:ffff88809bbf73f8 EFLAGS: 00010297
RAX: ffff888097072340 RBX: ffff88809bbf74e0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880b3884140
RBP: 0000000000000001 R08: ffffffff81b7afd0 R09: ffff88809bbf7800
R10: ffff88809bbf7857 R11: ffff888097072340 R12: ffff8880961e2080
R13: ffff88808e4fa7b0 R14: ffff8880b3884100 R15: ffff8880961e2700
FS:  0000555556061300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561ea69d7160 CR3: 00000000a22cf000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_load_buddy fs/ext4/mballoc.c:1253 [inline]
 ext4_mballoc_query_range+0x8f/0x740 fs/ext4/mballoc.c:5396
 ext4_getfsmap_datadev+0x5ba/0x11d0 fs/ext4/fsmap.c:550
 ext4_getfsmap+0x5f6/0x8c0 fs/ext4/fsmap.c:721
 ext4_ioc_getfsmap+0x251/0x830 fs/ext4/ioctl.c:603
 ext4_ioctl+0x248/0x3800 fs/ext4/ioctl.c:663
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fe1e1842fb9
RSP: 002b:00007ffe80da7178 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe1e1842fb9
RDX: 0000000020000200 RSI: 00000000c0c0583b RDI: 0000000000000003
RBP: 00007fe1e1802820 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555560612c0 R11: 0000000000000246 R12: 00007fe1e18028b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: e8 e9 11 af ff e9 90 f8 ff ff e8 af d4 97 ff e9 f5 f6 ff ff e8 a5 d4 97 ff 48 89 ef e8 cd 11 af ff e9 3d fb ff ff e8 93 d4 97 ff <0f> 0b e8 8c d4 97 ff 8b 54 24 28 89 ee 4c 89 e7 e8 ce db ff ff 
RIP: ext4_get_group_info fs/ext4/ext4.h:2849 [inline] RSP: ffff88809bbf73f8
RIP: ext4_mb_load_buddy_gfp+0x10dd/0x16c0 fs/ext4/mballoc.c:1128 RSP: ffff88809bbf73f8
---[ end trace c9b48c97b687a281 ]---