CVE-2024-27013

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> tun: limit printing rate when illegal packet received by tun dev<br /> <br /> vhost_worker will call tun call backs to receive packets. If too many<br /> illegal packets arrives, tun_do_read will keep dumping packet contents.<br /> When console is enabled, it will costs much more cpu time to dump<br /> packet and soft lockup will be detected.<br /> <br /> net_ratelimit mechanism can be used to limit the dumping rate.<br /> <br /> PID: 33036 TASK: ffff949da6f20000 CPU: 23 COMMAND: "vhost-32980"<br /> #0 [fffffe00003fce50] crash_nmi_callback at ffffffff89249253<br /> #1 [fffffe00003fce58] nmi_handle at ffffffff89225fa3<br /> #2 [fffffe00003fceb0] default_do_nmi at ffffffff8922642e<br /> #3 [fffffe00003fced0] do_nmi at ffffffff8922660d<br /> #4 [fffffe00003fcef0] end_repeat_nmi at ffffffff89c01663<br /> [exception RIP: io_serial_in+20]<br /> RIP: ffffffff89792594 RSP: ffffa655314979e8 RFLAGS: 00000002<br /> RAX: ffffffff89792500 RBX: ffffffff8af428a0 RCX: 0000000000000000<br /> RDX: 00000000000003fd RSI: 0000000000000005 RDI: ffffffff8af428a0<br /> RBP: 0000000000002710 R8: 0000000000000004 R9: 000000000000000f<br /> R10: 0000000000000000 R11: ffffffff8acbf64f R12: 0000000000000020<br /> R13: ffffffff8acbf698 R14: 0000000000000058 R15: 0000000000000000<br /> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018<br /> #5 [ffffa655314979e8] io_serial_in at ffffffff89792594<br /> #6 [ffffa655314979e8] wait_for_xmitr at ffffffff89793470<br /> #7 [ffffa65531497a08] serial8250_console_putchar at ffffffff897934f6<br /> #8 [ffffa65531497a20] uart_console_write at ffffffff8978b605<br /> #9 [ffffa65531497a48] serial8250_console_write at ffffffff89796558<br /> #10 [ffffa65531497ac8] console_unlock at ffffffff89316124<br /> #11 [ffffa65531497b10] vprintk_emit at ffffffff89317c07<br /> #12 [ffffa65531497b68] printk at ffffffff89318306<br /> #13 [ffffa65531497bc8] print_hex_dump at ffffffff89650765<br /> #14 [ffffa65531497ca8] tun_do_read at ffffffffc0b06c27 [tun]<br /> #15 [ffffa65531497d38] tun_recvmsg at ffffffffc0b06e34 [tun]<br /> #16 [ffffa65531497d68] handle_rx at ffffffffc0c5d682 [vhost_net]<br /> #17 [ffffa65531497ed0] vhost_worker at ffffffffc0c644dc [vhost]<br /> #18 [ffffa65531497f10] kthread at ffffffff892d2e72<br /> #19 [ffffa65531497f50] ret_from_fork at ffffffff89c0022f