------------[ cut here ]------------ kernel BUG at fs/io_uring.c:1293! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 24293 Comm: kworker/1:10 Not tainted 5.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events io_fallback_req_func RIP: 0010:io_queue_async_work+0x539/0x5f0 fs/io_uring.c:1293 Code: 89 be 89 00 00 00 48 c7 c7 00 87 9a 89 c6 05 a6 2d 77 0b 01 e8 28 1a 07 07 e9 6e ff ff ff e8 ee fb 94 ff 0f 0b e8 e7 fb 94 ff <0f> 0b e8 e0 fb 94 ff 0f 0b e9 1a fd ff ff e8 44 1c db ff e9 47 fb RSP: 0018:ffffc9001792fba8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802088d000 RCX: 0000000000000000 RDX: ffff888026a23880 RSI: ffffffff81e08cc9 RDI: ffff8880165edcd0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000043736500 R10: ffffffff81e2327f R11: 0000000000000000 R12: ffff888022797c80 R13: 0000000000000019 R14: ffff88802088d0b0 R15: ffff888022797cd8 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014a53ad CR3: 00000000622f9000 CR4: 0000000000350ee0 Call Trace: __io_queue_sqe+0x913/0xf10 fs/io_uring.c:6448 io_req_task_submit+0x100/0x120 fs/io_uring.c:2020 io_fallback_req_func+0x81/0xb0 fs/io_uring.c:2441 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 06f91395471a712e ]--- RIP: 0010:io_queue_async_work+0x539/0x5f0 fs/io_uring.c:1293 Code: 89 be 89 00 00 00 48 c7 c7 00 87 9a 89 c6 05 a6 2d 77 0b 01 e8 28 1a 07 07 e9 6e ff ff ff e8 ee fb 94 ff 0f 0b e8 e7 fb 94 ff <0f> 0b e8 e0 fb 94 ff 0f 0b e9 1a fd ff ff e8 44 1c db ff e9 47 fb RSP: 0018:ffffc9001792fba8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802088d000 RCX: 0000000000000000 RDX: ffff888026a23880 RSI: ffffffff81e08cc9 RDI: ffff8880165edcd0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000043736500 R10: ffffffff81e2327f R11: 0000000000000000 R12: ffff888022797c80 R13: 0000000000000019 R14: ffff88802088d0b0 R15: ffff888022797cd8 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d222000 CR3: 000000001c8ce000 CR4: 0000000000350ee0