------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2570! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5260 Comm: syz-executor.2 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:ext4_do_writepages+0x3c95/0x3ca0 fs/ext4/inode.c:2569 Code: ad 8d 4c 89 f2 e8 cb ea 78 02 e9 ab fb ff ff e8 b1 a3 4a ff 90 0f 0b e8 a9 a3 4a ff 90 0f 0b e8 11 a9 d3 08 e8 9c a3 4a ff 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 54 RSP: 0018:ffffc90004c6f520 EFLAGS: 00010293 RAX: ffffffff8243c3c4 RBX: 0000004000000000 RCX: ffff88801673d940 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc90004c6f890 R08: ffffffff82438c40 R09: 1ffff1100d76e78a R10: dffffc0000000000 R11: ffffed100d76e78b R12: 0000000000000001 R13: 0000000000400040 R14: 0000006a10000000 R15: ffff88806bb73eb0 FS: 00007f8fd03b16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556619938 CR3: 0000000066cb2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_writepages+0x203/0x3e0 fs/ext4/inode.c:2774 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:387 __filemap_fdatawrite_range mm/filemap.c:420 [inline] __filemap_fdatawrite mm/filemap.c:426 [inline] filemap_flush+0x11e/0x170 mm/filemap.c:453 ext4_release_file+0x81/0x300 fs/ext4/file.c:169 __fput+0x3cc/0x9e0 fs/file_table.c:394 task_work_run+0x24a/0x300 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f8fcf67cbe9 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:00007f8fd03b10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000021 RAX: 0000000000000006 RBX: 00007f8fcf79c050 RCX: 00007f8fcf67cbe9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000007 RBP: 00007f8fcf6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f8fcf79c050 R15: 00007fff807e2408 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_do_writepages+0x3c95/0x3ca0 fs/ext4/inode.c:2569 Code: ad 8d 4c 89 f2 e8 cb ea 78 02 e9 ab fb ff ff e8 b1 a3 4a ff 90 0f 0b e8 a9 a3 4a ff 90 0f 0b e8 11 a9 d3 08 e8 9c a3 4a ff 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 66 0f 1f 00 55 41 57 41 56 41 54 RSP: 0018:ffffc90004c6f520 EFLAGS: 00010293 RAX: ffffffff8243c3c4 RBX: 0000004000000000 RCX: ffff88801673d940 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc90004c6f890 R08: ffffffff82438c40 R09: 1ffff1100d76e78a R10: dffffc0000000000 R11: ffffed100d76e78b R12: 0000000000000001 R13: 0000000000400040 R14: 0000006a10000000 R15: ffff88806bb73eb0 FS: 00007f8fd03b16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1d40cfe000 CR3: 0000000066cb2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400