------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2564! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 3839 Comm: kworker/u8:9 Not tainted 6.9.0-syzkaller-07726-g3c999d1ae3c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:ext4_do_writepages+0x3d38/0x3d40 fs/ext4/inode.c:2563 Code: 4f 8e 4c 89 f2 e8 f8 c4 89 02 e9 ab fb ff ff e8 7e 0e 3f ff 90 0f 0b e8 76 0e 3f ff 90 0f 0b e8 be ba 27 09 e8 69 0e 3f ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000c286be0 EFLAGS: 00010293 RAX: ffffffff825720d7 RBX: 0000004000000000 RCX: ffff88802e318000 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc9000c286ff0 R08: ffffffff8256e8b3 R09: 1ffff1100ad10dca R10: dffffc0000000000 R11: ffffed100ad10dcb R12: 0000000000000001 R13: 0000000004208060 R14: 0000006210000000 R15: ffff8880568870b0 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd97c88ec8 CR3: 0000000022f2a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2768 do_writepages+0x359/0x870 mm/page-writeback.c:2613 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1651 writeback_sb_inodes+0x99c/0x1380 fs/fs-writeback.c:1947 wb_writeback+0x481/0xd40 fs/fs-writeback.c:2127 wb_do_writeback fs/fs-writeback.c:2274 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2314 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_do_writepages+0x3d38/0x3d40 fs/ext4/inode.c:2563 Code: 4f 8e 4c 89 f2 e8 f8 c4 89 02 e9 ab fb ff ff e8 7e 0e 3f ff 90 0f 0b e8 76 0e 3f ff 90 0f 0b e8 be ba 27 09 e8 69 0e 3f ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000c286be0 EFLAGS: 00010293 RAX: ffffffff825720d7 RBX: 0000004000000000 RCX: ffff88802e318000 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc9000c286ff0 R08: ffffffff8256e8b3 R09: 1ffff1100ad10dca R10: dffffc0000000000 R11: ffffed100ad10dcb R12: 0000000000000001 R13: 0000000004208060 R14: 0000006210000000 R15: ffff8880568870b0 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cc23000 CR3: 000000007d338000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400