------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2781! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 46 Comm: kworker/u4:3 Not tainted 6.2.0-syzkaller-12913-gae3419fbac84 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: writeback wb_workfn (flush-7:2) RIP: 0010:ext4_do_writepages+0x4028/0x4030 fs/ext4/inode.c:2780 Code: c7 10 d4 2b 8d 4c 89 f2 e8 85 a9 3a 02 e9 e2 fb ff ff e8 9b 6f 50 ff 0f 0b e8 94 6f 50 ff 0f 0b e8 8d 40 7b 08 e8 88 6f 50 ff <0f> 0b 66 0f 1f 44 00 00 66 0f 1f 00 55 41 57 41 56 41 54 53 49 89 RSP: 0018:ffffc90000b76ea0 EFLAGS: 00010293 RAX: ffffffff823c76f8 RBX: 0000008000000000 RCX: ffff88801733ba80 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90000b77210 R08: ffffffff823c3d83 R09: ffffed100e8548d2 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200016eee2 R13: ffffc90000b77710 R14: 0000008410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8689179000 CR3: 0000000075dbb000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_writepages+0x1e5/0x290 fs/ext4/inode.c:2964 do_writepages+0x3a6/0x670 mm/page-writeback.c:2551 __writeback_single_inode+0x1c4/0x15e0 fs/fs-writeback.c:1600 writeback_sb_inodes+0x92c/0x1360 fs/fs-writeback.c:1891 wb_writeback+0x508/0x1080 fs/fs-writeback.c:2065 wb_do_writeback fs/fs-writeback.c:2208 [inline] wb_workfn+0x48b/0x1100 fs/fs-writeback.c:2248 process_one_work+0x915/0x13a0 kernel/workqueue.c:2390 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_do_writepages+0x4028/0x4030 fs/ext4/inode.c:2780 Code: c7 10 d4 2b 8d 4c 89 f2 e8 85 a9 3a 02 e9 e2 fb ff ff e8 9b 6f 50 ff 0f 0b e8 94 6f 50 ff 0f 0b e8 8d 40 7b 08 e8 88 6f 50 ff <0f> 0b 66 0f 1f 44 00 00 66 0f 1f 00 55 41 57 41 56 41 54 53 49 89 RSP: 0018:ffffc90000b76ea0 EFLAGS: 00010293 RAX: ffffffff823c76f8 RBX: 0000008000000000 RCX: ffff88801733ba80 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90000b77210 R08: ffffffff823c3d83 R09: ffffed100e8548d2 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200016eee2 R13: ffffc90000b77710 R14: 0000008410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f86914bb000 CR3: 00000000758a5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400