EXT4-fs (loop2): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000000000,block_validity,debug_want_extra_isize=0x0000000000000066,dioread_nolock,nobh,nombcache,,errors=continue. Quota mode: writeback. ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3355! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 15641 Comm: syz-executor.2 Not tainted 5.15.91-syzkaller-02991-g7e0097918ff8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xe9d/0xeb0 fs/ext4/mballoc.c:1498 Code: 69 1e c7 ff e9 47 f4 ff ff e8 ef 25 84 ff 48 c7 c7 80 80 a9 86 48 89 de 4c 89 ea e8 8d 6e 98 00 e9 a1 f2 ff ff e8 d3 25 84 ff <0f> 0b e8 cc 25 84 ff 0f 0b e8 c5 25 84 ff 0f 0b 0f 1f 00 55 48 89 RSP: 0018:ffffc900038c7320 EFLAGS: 00010283 RAX: ffffffff81eeb31d RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90000e59000 RSI: 0000000000000236 RDI: 0000000000000237 RBP: ffffc900038c73b0 R08: ffffffff81eea574 R09: ffffc900038c7440 R10: fffff52000718e8f R11: 1ffff92000718e88 R12: ffff888111de73c8 R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88810f068000 FS: 00007fdb17ac3700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32d24000 CR3: 0000000117302000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_mb_load_buddy fs/ext4/mballoc.c:1620 [inline] ext4_mballoc_query_range+0xb8/0x7b0 fs/ext4/mballoc.c:6560 ext4_getfsmap_datadev+0x1c8a/0x28c0 fs/ext4/fsmap.c:537 ext4_getfsmap+0xcff/0x1040 fs/ext4/fsmap.c:708 ext4_ioc_getfsmap fs/ext4/ioctl.c:661 [inline] __ext4_ioctl fs/ext4/ioctl.c:863 [inline] ext4_ioctl+0x3020/0x5110 fs/ext4/ioctl.c:1277 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x115/0x190 fs/ioctl.c:860 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fdb18d500c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdb17ac3168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fdb18e6ff80 RCX: 00007fdb18d500c9 RDX: 0000000020000200 RSI: 00000000c0c0583b RDI: 0000000000000004 RBP: 00007fdb18dabae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe25fb2f1f R14: 00007fdb17ac3300 R15: 0000000000022000 Modules linked in: ---[ end trace a323ec5643a3afa5 ]--- RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline] RIP: 0010:ext4_mb_load_buddy_gfp+0xe9d/0xeb0 fs/ext4/mballoc.c:1498 Code: 69 1e c7 ff e9 47 f4 ff ff e8 ef 25 84 ff 48 c7 c7 80 80 a9 86 48 89 de 4c 89 ea e8 8d 6e 98 00 e9 a1 f2 ff ff e8 d3 25 84 ff <0f> 0b e8 cc 25 84 ff 0f 0b e8 c5 25 84 ff 0f 0b 0f 1f 00 55 48 89 RSP: 0018:ffffc900038c7320 EFLAGS: 00010283 RAX: ffffffff81eeb31d RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90000e59000 RSI: 0000000000000236 RDI: 0000000000000237 RBP: ffffc900038c73b0 R08: ffffffff81eea574 R09: ffffc900038c7440 R10: fffff52000718e8f R11: 1ffff92000718e88 R12: ffff888111de73c8 R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88810f068000 FS: 00007fdb17ac3700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0220b9000 CR3: 0000000117302000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400