------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2620! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 UID: 0 PID: 8068 Comm: kworker/u8:12 Not tainted 6.13.0-rc1-syzkaller-00001-ge70140ba0d2b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:ext4_do_writepages+0x3d01/0x3d10 fs/ext4/inode.c:2619 Code: af 8e 4c 89 f2 e8 df 19 a3 02 e9 ab fb ff ff e8 85 bc 3f ff 90 0f 0b e8 7d bc 3f ff 90 0f 0b e8 25 97 70 09 e8 70 bc 3f ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9000420ecc0 EFLAGS: 00010293 RAX: ffffffff825fb5b0 RBX: 0000004000000000 RCX: ffff88801eb60000 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc9000420f0d0 R08: ffffffff825f7dbb R09: 1ffff1100ad88da9 R10: dffffc0000000000 R11: ffffed100ad88daa R12: 0000000000000001 R13: 0000000004208060 R14: 0000006210000000 R15: ffff888056c46fa8 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b7d1bf31f8 CR3: 00000000501c2000 CR4: 0000000000350ef0 Call Trace: ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824 do_writepages+0x361/0x880 mm/page-writeback.c:2702 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680 writeback_sb_inodes+0x820/0x1360 fs/fs-writeback.c:1976 wb_writeback+0x413/0xb80 fs/fs-writeback.c:2156 wb_do_writeback fs/fs-writeback.c:2303 [inline] wb_workfn+0x410/0x1080 fs/fs-writeback.c:2343 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/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+0x3d01/0x3d10 fs/ext4/inode.c:2619 Code: af 8e 4c 89 f2 e8 df 19 a3 02 e9 ab fb ff ff e8 85 bc 3f ff 90 0f 0b e8 7d bc 3f ff 90 0f 0b e8 25 97 70 09 e8 70 bc 3f ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9000420ecc0 EFLAGS: 00010293 RAX: ffffffff825fb5b0 RBX: 0000004000000000 RCX: ffff88801eb60000 RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 RBP: ffffc9000420f0d0 R08: ffffffff825f7dbb R09: 1ffff1100ad88da9 R10: dffffc0000000000 R11: ffffed100ad88daa R12: 0000000000000001 R13: 0000000004208060 R14: 0000006210000000 R15: ffff888056c46fa8 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007effe82c1fb8 CR3: 000000000e736000 CR4: 0000000000350ef0