------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2735! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1020 Comm: kworker/u4:3 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:ext4_writepages+0x3fe6/0x4000 fs/ext4/inode.c:2734 Code: 89 de e8 4d c9 87 ff 45 84 f6 75 2c e8 b3 c6 87 ff 49 be 00 00 00 00 00 fc ff df 4c 8b 64 24 50 e9 e4 c5 ff ff e8 9a c6 87 ff <0f> 0b e8 93 c6 87 ff e8 ba 26 18 ff eb 9b e8 87 c6 87 ff e8 ae 26 RSP: 0018:ffffc90000c37000 EFLAGS: 00010293 RAX: ffffffff81e85ae6 RBX: 0000008000000000 RCX: ffff88810eb3e2c0 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90000c37410 R08: ffffffff81e85256 R09: ffffed1024a07dec R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000c377d0 R13: 0000000000000000 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020781000 CR3: 00000001087ce000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x40e/0x670 mm/page-writeback.c:2366 __writeback_single_inode+0xdf/0xa70 fs/fs-writeback.c:1647 writeback_sb_inodes+0xb2a/0x1920 fs/fs-writeback.c:1930 wb_writeback+0x3b9/0x9e0 fs/fs-writeback.c:2104 wb_do_writeback fs/fs-writeback.c:2247 [inline] wb_workfn+0x3d9/0x1110 fs/fs-writeback.c:2288 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Modules linked in: ---[ end trace 54ace045b2bbb78f ]--- RIP: 0010:ext4_writepages+0x3fe6/0x4000 fs/ext4/inode.c:2734 Code: 89 de e8 4d c9 87 ff 45 84 f6 75 2c e8 b3 c6 87 ff 49 be 00 00 00 00 00 fc ff df 4c 8b 64 24 50 e9 e4 c5 ff ff e8 9a c6 87 ff <0f> 0b e8 93 c6 87 ff e8 ba 26 18 ff eb 9b e8 87 c6 87 ff e8 ae 26 RSP: 0018:ffffc90000c37000 EFLAGS: 00010293 RAX: ffffffff81e85ae6 RBX: 0000008000000000 RCX: ffff88810eb3e2c0 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90000c37410 R08: ffffffff81e85256 R09: ffffed1024a07dec R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000c377d0 R13: 0000000000000000 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fae60b78000 CR3: 000000010c963000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400