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kernel BUG at fs/ext4/inode.c:2780!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 670 Comm: syz.2.97 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:ext4_writepages+0x2edb/0x2f00 fs/ext4/inode.c:2779
Code: ff 49 bd 00 00 00 00 00 fc ff df 4c 8b a4 24 98 00 00 00 48 8b 5c 24 38 4c 8b b4 24 c0 00 00 00 e9 fe f7 ff ff e8 85 ed 92 ff <0f> 0b e8 7e ed 92 ff e8 b5 b7 2e ff eb 92 e8 72 ed 92 ff e8 a9 b7
RSP: 0018:ffffc900011b7400 EFLAGS: 00010283
RAX: ffffffff81d1b5db RBX: 0000008410000000 RCX: 0000000000080000
RDX: ffffc90003102000 RSI: 00000000000002a1 RDI: 00000000000002a2
RBP: ffffc900011b7770 R08: ffff88812af42f97 R09: 1ffff110255e85f2
R10: dffffc0000000000 R11: ffffed10255e85f3 R12: ffff88811bf0b000
R13: dffffc0000000000 R14: 0000008000000000 R15: ffff88812af42f90
FS:  00007f456c6b16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8bb8e35000 CR3: 000000011d30f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0x12e/0x280 mm/page-writeback.c:2380
 __filemap_fdatawrite_range+0x2a0/0x350 mm/filemap.c:427
 file_write_and_wait_range+0x8c/0x110 mm/filemap.c:766
 ext4_sync_file+0x1ad/0xa20 fs/ext4/fsync.c:151
 vfs_fsync_range+0x171/0x180 fs/sync.c:202
 generic_write_sync include/linux/fs.h:2920 [inline]
 ext4_buffered_write_iter+0x576/0x620 fs/ext4/file.c:278
 ext4_file_write_iter+0x49a/0x19a0 fs/ext4/file.c:-1
 call_write_iter include/linux/fs.h:2066 [inline]
 new_sync_write fs/read_write.c:518 [inline]
 vfs_write+0x770/0xd70 fs/read_write.c:605
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f456dc78e99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f456c6b1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f456df01090 RCX: 00007f456dc78e99
RDX: 0000000000000028 RSI: 0000200000000080 RDI: 0000000000000005
RBP: 00007f456dd0eeaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f456df01128 R14: 00007f456df01090 R15: 00007ffed3674f18
Modules linked in:
---[ end trace 0994da6869c5c5b9 ]---
RIP: 0010:ext4_writepages+0x2edb/0x2f00 fs/ext4/inode.c:2779
Code: ff 49 bd 00 00 00 00 00 fc ff df 4c 8b a4 24 98 00 00 00 48 8b 5c 24 38 4c 8b b4 24 c0 00 00 00 e9 fe f7 ff ff e8 85 ed 92 ff <0f> 0b e8 7e ed 92 ff e8 b5 b7 2e ff eb 92 e8 72 ed 92 ff e8 a9 b7
RSP: 0018:ffffc900011b7400 EFLAGS: 00010283
RAX: ffffffff81d1b5db RBX: 0000008410000000 RCX: 0000000000080000
RDX: ffffc90003102000 RSI: 00000000000002a1 RDI: 00000000000002a2
RBP: ffffc900011b7770 R08: ffff88812af42f97 R09: 1ffff110255e85f2
R10: dffffc0000000000 R11: ffffed10255e85f3 R12: ffff88811bf0b000
R13: dffffc0000000000 R14: 0000008000000000 R15: ffff88812af42f90
FS:  00007f456c6b16c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8bc284c2f8 CR3: 000000011d30f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400