syzbot

ext4 filesystem being mounted at /root/syzkaller.ZhkiGT/13/file1 supports timestamps until 2038 (0x7fffffff)
EXT4-fs error (device loop0): ext4_map_blocks:602: inode #3: block 9: comm syz-executor275: lblock 0 mapped to illegal pblock 9 (length 1)
EXT4-fs error (device loop0) in ext4_reserve_inode_write:5877: Out of memory
EXT4-fs error (device loop0): ext4_dirty_inode:6087: inode #16: comm syz-executor275: mark_inode_dirty error
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kernel BUG at fs/ext4/ext4.h:3247!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 371 Comm: syz-executor275 Not tainted 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_find_by_goal+0xe18/0xe50 fs/ext4/mballoc.c:1885
Code: 24 30 e9 be fb ff ff e8 06 c1 89 ff 48 bb 00 00 00 00 00 fc ff df e9 23 f7 ff ff e8 f2 c0 89 ff e9 05 f7 ff ff e8 e8 c0 89 ff <0f> 0b e8 81 c7 c8 02 e8 dc c0 89 ff 0f 0b e8 d5 c0 89 ff 0f 0b e8
RSP: 0018:ffffc90000e47220 EFLAGS: 00010293
RAX: ffffffff81e0b8c8 RBX: 0000000000000001 RCX: ffff88810c323b40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90000e47330 R08: ffffffff81e0abdf R09: ffffed10238b8e12
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810cd493c8
R13: 0000000000000001 R14: 1ffff110219a9279 R15: 1ffff920001c8e54
FS:  00007f9fd6998700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011edc4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_regular_allocator+0x249/0x2030 fs/ext4/mballoc.c:2321
 ext4_mb_new_blocks+0xfb1/0x4430 fs/ext4/mballoc.c:5038
 ext4_ext_map_blocks+0x190e/0x6be0 fs/ext4/extents.c:4281
 ext4_map_blocks+0xaa7/0x1f00 fs/ext4/inode.c:646
 ext4_alloc_file_blocks+0x3f4/0xcd0 fs/ext4/extents.c:4469
 ext4_fallocate+0x853/0x1cb0 fs/ext4/extents.c:4755
 vfs_fallocate+0x492/0x570 fs/open.c:310
 ksys_fallocate fs/open.c:333 [inline]
 __do_sys_fallocate fs/open.c:341 [inline]
 __se_sys_fallocate fs/open.c:339 [inline]
 __x64_sys_fallocate+0xc0/0x110 fs/open.c:339
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f9fd69ec709
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 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:00007f9fd69982f8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f9fd6a727a0 RCX: 00007f9fd69ec709
RDX: 0000000000008947 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f9fd6a3f57c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 00007f9fd6a3e578
R13: 0031656c69662f2e R14: 6f6f6c2f7665642f R15: 00007f9fd6a727a8
Modules linked in:
---[ end trace f94a316d0cf427d2 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3247 [inline]
RIP: 0010:ext4_mb_find_by_goal+0xe18/0xe50 fs/ext4/mballoc.c:1885
Code: 24 30 e9 be fb ff ff e8 06 c1 89 ff 48 bb 00 00 00 00 00 fc ff df e9 23 f7 ff ff e8 f2 c0 89 ff e9 05 f7 ff ff e8 e8 c0 89 ff <0f> 0b e8 81 c7 c8 02 e8 dc c0 89 ff 0f 0b e8 d5 c0 89 ff 0f 0b e8
RSP: 0018:ffffc90000e47220 EFLAGS: 00010293
RAX: ffffffff81e0b8c8 RBX: 0000000000000001 RCX: ffff88810c323b40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc90000e47330 R08: ffffffff81e0abdf R09: ffffed10238b8e12
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810cd493c8
R13: 0000000000000001 R14: 1ffff110219a9279 R15: 1ffff920001c8e54
FS:  00007f9fd6998700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011edc4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400