------------[ cut here ]------------
kernel BUG at fs/buffer.c:2097!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 490 Comm: syz-executor.1 Not tainted 6.1.134-syzkaller-1169264-ga0fa2316cce1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:__block_commit_write+0x26a/0x270 fs/buffer.c:2097
Code: ff 48 8b 5d b8 48 89 df be 08 00 00 00 e8 7e 22 e8 ff f0 80 0b 04 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 76 cd a3 ff <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 b8 a7 7b a9 b7
RSP: 0018:ffffc90001857768 EFLAGS: 00010293
RAX: ffffffff81cc195a RBX: 0000000000000000 RCX: ffff88811a98a880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900018577b8 R08: dffffc0000000000 R09: fffff9400093e7b1
R10: fffff9400093e7b1 R11: 1ffffd400093e7b0 R12: 000000000000000c
R13: ffff8881250d5730 R14: ffffea00049f3d80 R15: dffffc0000000000
FS:  00007f73eb8046c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcd79fad988 CR3: 0000000127646000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 block_write_end+0x48/0x90 fs/buffer.c:2187
 ext4_write_end+0x1f3/0x930 fs/ext4/inode.c:1348
 ext4_da_write_end+0x8b/0x8c0 fs/ext4/inode.c:3084
 generic_perform_write+0x3a2/0x6d0 mm/filemap.c:3892
 ext4_buffered_write_iter+0x36f/0x660 fs/ext4/file.c:285
 ext4_file_write_iter+0x18f/0x13d0 fs/ext4/file.c:-1
 call_write_iter include/linux/fs.h:2274 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5db/0xca0 fs/read_write.c:584
 ksys_write+0x140/0x240 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 x64_sys_call+0x27b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f73eaa7cda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73eb8040c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f73eababf80 RCX: 00007f73eaa7cda9
RDX: 000000000000000c RSI: 0000000020000300 RDI: 0000000000000004
RBP: 00007f73eaac947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f73eababf80 R15: 00007ffdf8c8ff58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__block_commit_write+0x26a/0x270 fs/buffer.c:2097
Code: ff 48 8b 5d b8 48 89 df be 08 00 00 00 e8 7e 22 e8 ff f0 80 0b 04 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 76 cd a3 ff <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 b8 a7 7b a9 b7
RSP: 0018:ffffc90001857768 EFLAGS: 00010293

RAX: ffffffff81cc195a RBX: 0000000000000000 RCX: ffff88811a98a880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900018577b8 R08: dffffc0000000000 R09: fffff9400093e7b1
R10: fffff9400093e7b1 R11: 1ffffd400093e7b0 R12: 000000000000000c
R13: ffff8881250d5730 R14: ffffea00049f3d80 R15: dffffc0000000000
FS:  00007f73eb8046c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fea9166f000 CR3: 0000000127646000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400