------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2722! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4443 Comm: kworker/u4:7 Not tainted 5.15.155-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: writeback wb_workfn (flush-7:3) RIP: 0010:ext4_writepages+0x3d02/0x3d10 fs/ext4/inode.c:2721 Code: c7 90 8b a8 8c 4c 89 f2 e8 fb 9b 0c 02 e9 bb fb ff ff e8 c1 84 62 ff 0f 0b e8 7a c5 ff 07 e8 b5 84 62 ff 0f 0b e8 ae 84 62 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 41 56 41 54 53 49 RSP: 0018:ffffc90004316f60 EFLAGS: 00010293 RAX: ffffffff821dd832 RBX: 0000008000000000 RCX: ffff88805d5e9dc0 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90004317350 R08: ffffffff821da1d0 R09: ffffed100bc7f507 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90004317220 R13: ffffc90004317710 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b0342fb950 CR3: 000000006103f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x481/0x730 mm/page-writeback.c:2364 __writeback_single_inode+0x15b/0xe30 fs/fs-writeback.c:1647 writeback_sb_inodes+0xbce/0x1a40 fs/fs-writeback.c:1930 wb_writeback+0x451/0xc50 fs/fs-writeback.c:2104 wb_do_writeback fs/fs-writeback.c:2247 [inline] wb_workfn+0x46c/0x1130 fs/fs-writeback.c:2288 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 Modules linked in: ---[ end trace bd0b99b195da5724 ]--- RIP: 0010:ext4_writepages+0x3d02/0x3d10 fs/ext4/inode.c:2721 Code: c7 90 8b a8 8c 4c 89 f2 e8 fb 9b 0c 02 e9 bb fb ff ff e8 c1 84 62 ff 0f 0b e8 7a c5 ff 07 e8 b5 84 62 ff 0f 0b e8 ae 84 62 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 41 56 41 54 53 49 RSP: 0018:ffffc90004316f60 EFLAGS: 00010293 RAX: ffffffff821dd832 RBX: 0000008000000000 RCX: ffff88805d5e9dc0 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90004317350 R08: ffffffff821da1d0 R09: ffffed100bc7f507 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90004317220 R13: ffffc90004317710 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f98fe9e8c98 CR3: 0000000018aa8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400