EXT4-fs error (device loop5): ext4_validate_block_bitmap:438: comm syz.5.12432: bg 0: block 234: padding at end of block bitmap is not set
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kernel BUG at fs/ext4/indirect.c:544!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 19232 Comm: syz.5.12432 Tainted: G        W         5.10.234-syzkaller-00157-ge0b88ee5f09c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_ind_map_blocks+0x2905/0x2ab0 fs/ext4/indirect.c:544
Code: 08 4c 89 ff e8 3c 3b cd ff 49 8b 3f 48 8b 74 24 08 44 89 f2 89 d9 44 8b 44 24 4c e8 55 77 0b 00 e9 00 01 00 00 e8 ab 9b 8f ff <0f> 0b e8 a4 9b 8f ff 0f 0b 65 44 8b 35 72 ed 26 7e 44 89 f0 c1 e8
RSP: 0018:ffffc90000c37140 EFLAGS: 00010293
RAX: ffffffff81db23c5 RBX: 0000000000080000 RCX: ffff888122ce4f00
RDX: 0000000000000000 RSI: 0000000000080000 RDI: 0000000000000000
RBP: ffffc90000c37410 R08: ffffffff81dafc84 R09: ffffed10255a0d55
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000186ec5 R14: 0000008c10080000 R15: ffffc90000c37628
FS:  0000555560a8b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000c00 CR3: 000000010b5e7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_map_blocks+0xa0d/0x1d10 fs/ext4/inode.c:675
 _ext4_get_block+0x21b/0x610 fs/ext4/inode.c:816
 ext4_get_block+0x39/0x50 fs/ext4/inode.c:833
 __block_write_begin_int+0x5c1/0x1600 fs/buffer.c:2042
 __block_write_begin fs/buffer.c:2092 [inline]
 block_page_mkwrite+0x1fc/0x260 fs/buffer.c:2554
 ext4_page_mkwrite+0x468/0x1340 fs/ext4/inode.c:6307
 do_page_mkwrite mm/memory.c:3037 [inline]
 wp_page_shared+0x4c0/0x7e0 mm/memory.c:3372
 do_wp_page+0xb08/0xca0 mm/memory.c:3476
 handle_pte_fault+0xd31/0x3e10 mm/memory.c:4810
 __handle_mm_fault mm/memory.c:4944 [inline]
 handle_mm_fault+0x11d6/0x1a10 mm/memory.c:5358
 do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
 handle_page_fault arch/x86/mm/fault.c:1428 [inline]
 exc_page_fault+0x2a6/0x5b0 arch/x86/mm/fault.c:1484
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:571
RIP: 0033:0x7fe5b0560ed8
Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5
RSP: 002b:00007ffcc052e488 EFLAGS: 00010202
RAX: 0000200000000c00 RBX: 0000000000000004 RCX: 007265746e655f73
RDX: 000000000000000a RSI: 65746e655f737973 RDI: 0000200000000c00
RBP: 00007fe5b07b3ba0 R08: 00007fe5b040c000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007fe5b07b1fac
R13: 00007fe5b07b1fa0 R14: fffffffffffffffe R15: 00007ffcc052e5a0
Modules linked in:
---[ end trace b54438c197c1c9d4 ]---
RIP: 0010:ext4_ind_map_blocks+0x2905/0x2ab0 fs/ext4/indirect.c:544
Code: 08 4c 89 ff e8 3c 3b cd ff 49 8b 3f 48 8b 74 24 08 44 89 f2 89 d9 44 8b 44 24 4c e8 55 77 0b 00 e9 00 01 00 00 e8 ab 9b 8f ff <0f> 0b e8 a4 9b 8f ff 0f 0b 65 44 8b 35 72 ed 26 7e 44 89 f0 c1 e8
RSP: 0018:ffffc90000c37140 EFLAGS: 00010293
RAX: ffffffff81db23c5 RBX: 0000000000080000 RCX: ffff888122ce4f00
RDX: 0000000000000000 RSI: 0000000000080000 RDI: 0000000000000000
RBP: ffffc90000c37410 R08: ffffffff81dafc84 R09: ffffed10255a0d55
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000186ec5 R14: 0000008c10080000 R15: ffffc90000c37628
FS:  0000555560a8b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31915ff8 CR3: 000000010b5e7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400