IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs error (device loop0): ext4_validate_block_bitmap:384: comm syz-executor.0: bg 0: bad block bitmap checksum
hrtimer: interrupt took 39126 ns
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:2870!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8394 Comm: syz-executor.0 Not tainted 4.19.171-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:2870 [inline]
RIP: 0010:ext4_mb_find_by_goal+0x924/0x1340 fs/ext4/mballoc.c:1824
Code: ff 48 c7 c2 00 73 7a 88 be a5 02 00 00 48 c7 c7 c0 72 7a 88 c6 05 85 89 2b 09 01 e8 a0 38 0d 06 e9 b1 f9 ff ff e8 fc 7e 7f ff <0f> 0b e8 f5 7e 7f ff 49 8d bc 24 30 04 00 00 4d 63 ef 48 b8 00 00
RSP: 0018:ffff888093d0ecc8 EFLAGS: 00010293
RAX: ffff8880ab6d6240 RBX: ffff88808b49df00 RCX: ffffffff81e2d36a
RDX: 0000000000000000 RSI: ffffffff81e2db54 RDI: 0000000000000004
RBP: ffff888093d0edc0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000004 R11: 0000000045980749 R12: ffff8880ab1f2740
R13: 0000000000000001 R14: ffff88809e894700 R15: ffff88809e894d80
FS:  00007fd66668b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ebef23000 CR3: 00000000ab827000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_regular_allocator+0x21c/0x1100 fs/ext4/mballoc.c:2127
 ext4_mb_new_blocks+0x1b45/0x4370 fs/ext4/mballoc.c:4566
 ext4_ext_map_blocks+0x2aa2/0x7390 fs/ext4/extents.c:4491
 ext4_map_blocks+0x7a2/0x1a50 fs/ext4/inode.c:658
 _ext4_get_block+0x208/0x530 fs/ext4/inode.c:811
 __block_write_begin_int+0x46c/0x17b0 fs/buffer.c:1978
 ext4_write_begin+0x52d/0x1610 fs/ext4/inode.c:1346
 ext4_da_write_begin+0x737/0x10e0 fs/ext4/inode.c:3052
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 ext4_file_write_iter+0x2fe/0xf20 fs/ext4/file.c:272
 call_write_iter include/linux/fs.h:1821 [inline]
 do_iter_readv_writev+0x668/0x790 fs/read_write.c:681
 do_iter_write+0x182/0x5d0 fs/read_write.c:960
 vfs_writev+0x153/0x2e0 fs/read_write.c:1005
 do_pwritev fs/read_write.c:1094 [inline]
 __do_sys_pwritev fs/read_write.c:1141 [inline]
 __se_sys_pwritev fs/read_write.c:1136 [inline]
 __x64_sys_pwritev+0x22b/0x310 fs/read_write.c:1136
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e219
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd66668ac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000128
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045e219
RDX: 0000000000000002 RSI: 0000000020000380 RDI: 0000000000000006
RBP: 000000000119c078 R08: 000000000000001f R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 000000000119c034
R13: 00007ffd092fa35f R14: 00007fd66668b9c0 R15: 000000000119c034
Modules linked in:
---[ end trace 2a3e5d86f90eeba3 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2870 [inline]
RIP: 0010:ext4_mb_find_by_goal+0x924/0x1340 fs/ext4/mballoc.c:1824
syz-executor.0 (8388) used greatest stack depth: 22824 bytes left
Code: ff 48 c7 c2 00 73 7a 88 be a5 02 00 00 48 c7 c7 c0 72 7a 88 c6 05 85 89 2b 09 01 e8 a0 38 0d 06 e9 b1 f9 ff ff e8 fc 7e 7f ff <0f> 0b e8 f5 7e 7f ff 49 8d bc 24 30 04 00 00 4d 63 ef 48 b8 00 00
RSP: 0018:ffff888093d0ecc8 EFLAGS: 00010293
RAX: ffff8880ab6d6240 RBX: ffff88808b49df00 RCX: ffffffff81e2d36a
RDX: 0000000000000000 RSI: ffffffff81e2db54 RDI: 0000000000000004
RBP: ffff888093d0edc0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000004 R11: 0000000045980749 R12: ffff8880ab1f2740
R13: 0000000000000001 R14: ffff88809e894700 R15: ffff88809e894d80
FS:  00007fd66668b700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ebefb0000 CR3: 00000000ab827000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400