================================================================================ UBSAN: array-index-out-of-bounds in io_uring/net.c:189:36 index 3779560775785 is out of range for type 'struct iovec[8]' CPU: 0 PID: 29639 Comm: syz-executor.5 Not tainted 6.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348 io_setup_async_msg+0x49b/0x4a0 io_uring/net.c:189 io_recvmsg+0x19af/0x24f0 io_issue_sqe+0x33a/0xb10 io_uring/io_uring.c:1878 io_queue_sqe io_uring/io_uring.c:2063 [inline] io_submit_sqe io_uring/io_uring.c:2323 [inline] io_submit_sqes+0xaf0/0x1e10 io_uring/io_uring.c:2438 __do_sys_io_uring_enter io_uring/io_uring.c:3647 [inline] __se_sys_io_uring_enter+0x2dd/0x1320 io_uring/io_uring.c:3581 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6bbbc7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6bbc97b0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007f6bbbd9bf80 RCX: 00007f6bbbc7cae9 RDX: 0000000000000000 RSI: 0000000000007689 RDI: 0000000000000003 RBP: 00007f6bbbcc847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f6bbbd9bf80 R15: 00007ffd6e526bf8 ================================================================================