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kernel BUG at fs/ext4/ext4.h:2985!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2285 Comm: syz.6.516 Tainted: G        W         5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2985 [inline]
RIP: 0010:ext4_mb_find_by_goal+0x968/0x9a0 fs/ext4/mballoc.c:1830
Code: fc ff ff 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c 14 fd ff ff 48 8b 7d b0 e8 f6 31 cc ff 48 8b 55 b0 e9 02 fd ff ff e8 d8 37 9e ff <0f> 0b e8 d1 37 9e ff 0f 0b e8 ca 37 9e ff 0f 0b e8 c3 37 9e ff 0f
RSP: 0018:ffff8881e4d27088 EFLAGS: 00010293
RAX: ffffffff81c14708 RBX: 0000000000000001 RCX: ffff8881e0a08fc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8881e4d27120 R08: dffffc0000000000 R09: ffff8881e4d27200
R10: ffffed103c9a4e47 R11: 1ffff1103c9a4e40 R12: 1ffff1103865707e
R13: ffff8881c32b83f0 R14: 0000000000000001 R15: ffff8881e4d27200
FS:  0000555591cde500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000200 CR3: 00000001e9cf0000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_regular_allocator+0x192/0xfb0 fs/ext4/mballoc.c:2131
 ext4_mb_new_blocks+0x5a9/0x2e80 fs/ext4/mballoc.c:4600
 ext4_ext_map_blocks+0x183c/0x63c0 fs/ext4/extents.c:4549
 ext4_map_blocks+0x92d/0x1b00 fs/ext4/inode.c:661
 _ext4_get_block+0x1bb/0x4b0 fs/ext4/inode.c:802
 ext4_get_block+0x39/0x50 fs/ext4/inode.c:819
 __block_write_begin_int+0x516/0x15f0 fs/buffer.c:1980
 __block_write_begin fs/buffer.c:2030 [inline]
 block_page_mkwrite+0x200/0x270 fs/buffer.c:2492
 ext4_page_mkwrite+0xb36/0x1330 fs/ext4/inode.c:6485
 do_page_mkwrite mm/memory.c:2364 [inline]
 do_shared_fault mm/memory.c:3764 [inline]
 do_fault mm/memory.c:3832 [inline]
 handle_pte_fault mm/memory.c:4059 [inline]
 __handle_mm_fault mm/memory.c:4183 [inline]
 handle_mm_fault+0x244a/0x3930 mm/memory.c:4220
 do_user_addr_fault arch/x86/mm/fault.c:1444 [inline]
 __do_page_fault+0x4c0/0xb20 arch/x86/mm/fault.c:1505
 do_page_fault+0x37/0x320 arch/x86/mm/fault.c:1529
 page_fault+0x2f/0x40 arch/x86/entry/entry_64.S:1206
RIP: 0033:0x7ff347df9f79
Code: ff ff ff 01 64 48 8b 04 25 00 00 00 00 48 8d b8 c8 fe ff ff e8 48 59 0c 00 85 c0 75 10 48 8b 44 24 68 48 8b b4 24 98 00 00 00 <48> 89 30 64 f0 83 2c 25 90 ff ff ff 01 48 8b 84 24 80 00 00 00 48
RSP: 002b:00007ffcfa339c30 EFLAGS: 00010246
RAX: 0000200000000040 RBX: 0000000000000002 RCX: ffffe00000000000
RDX: c393c0aac2962e92 RSI: 0000000000000000 RDI: 0000555591cde3c8
RBP: 00007ff34814cba0 R08: 00007ff347d95000 R09: 000000000000000f
R10: 0000000000000001 R11: 0000000000000006 R12: 00007ff34814afac
R13: 00007ff34814afa0 R14: fffffffffffffffe R15: 00007ffcfa339d40
Modules linked in:
---[ end trace d1f0ec3c6cb12653 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2985 [inline]
RIP: 0010:ext4_mb_find_by_goal+0x968/0x9a0 fs/ext4/mballoc.c:1830
Code: fc ff ff 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c 14 fd ff ff 48 8b 7d b0 e8 f6 31 cc ff 48 8b 55 b0 e9 02 fd ff ff e8 d8 37 9e ff <0f> 0b e8 d1 37 9e ff 0f 0b e8 ca 37 9e ff 0f 0b e8 c3 37 9e ff 0f
RSP: 0018:ffff8881e4d27088 EFLAGS: 00010293
RAX: ffffffff81c14708 RBX: 0000000000000001 RCX: ffff8881e0a08fc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8881e4d27120 R08: dffffc0000000000 R09: ffff8881e4d27200
R10: ffffed103c9a4e47 R11: 1ffff1103c9a4e40 R12: 1ffff1103865707e
R13: ffff8881c32b83f0 R14: 0000000000000001 R15: ffff8881e4d27200
FS:  0000555591cde500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000200 CR3: 00000001e9cf0000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400