Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。 - LoongArchBPF: Sign-extend struct ops 正确返回值ns_bpf_qdisc selftest 触发内核恐慌Oops[#1]: CPU 0 无法处理虚拟地址 0000000000741d58 上的内核分页请求era == 90000000851b5ac0, ra == 90000000851b5aa4 CPU 0 UID:0 PID449 Commtest_progs 受感染G OE 6.16.0+ #3 PREEMPT(full) 受感染[O]=OOT_MODULE、[E]=UNSIGNED_MODULE 硬件名称QEMU QEMU 虚拟机BIOS 未知2/2 /2022 pc 90000000851b5ac0 ra 90000000851b5aa4 tp 90000001076b8000 sp 90000001076bb600 a0 0000000000741ce8 a1 0000000000000001 a2 90000001076bb5c0 a3 0000000000000008 a4 90000001004c4620 a5 9000000100741ce8 a6 0000000000000000 a7 0100000000000000 t0 0000000000000010 t1 0000000000000000 t2 9000000104d24d30 t3 0000000000000001 t4 4f2317da8a7e08c4 t5 fffffefffc002f00 t6 90000001004c4620 t7 ffffffffc61c5b3d t8 0000000000000000 u0 0000000000000001 s9 0000000000000050 s0 90000001075bc800 s1 0000000000000040 s2 900000010597c400 s3 0000000000000008 s4 90000001075bc88 0 s5 90000001075bc8f0 s6 000000000000000 s7 0000000000741ce8 s8 0000000000000000 ra90000000851b5aa4 __qdisc_run+0xac/0x8d8 ERA 90000000851b5ac0 __qdisc_run+0xc8/0x8d8 CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) PRMD: 00000004 (PPLV0 +PIE -PWE) EUEN00000007 (+FPE +SXE +ASXE -BTE) ECFG00071c1d (LIE=0,2-4,10-12 VS=7) ESTAT: 00010000 [PIL] (IS= ECode =1 EsubCode=0) BADV: 0000000000741d58 PRID: 0014c010 (Loongson-64bit, Loongson-3A5000) 链接的模块bpf_testmod(OE) [最后一个卸载的: bpf_testmod(OE)] Process test_progspid: 449、 threadinfo=000000009af02b3a、 task=00000000e9ba4956) Stack : 0000000000000000 90000001075bc8ac 90000000869524a8 9000000100741ce8 90000001075bc800 9000000100415300 90000001075bc8ac 0000000000000000 900000010597c400 900000008694a000 0000000000000000 9000000105b59000 90000001075bc800 9000000100741ce8 0000000000000050 900000008513000c 9000000086936000 0000000100094d4c fffffff400676208 0000000000000000 9000000105b59000 900000008694a000 9000000086bf0dc0 9000000105b59000 9000000086bf0d68 9000000085147010 90000001075be788 0000000000000000 9000000086bf0f98 0000000000000001 0000000000000010 9000000006015840 0000000000000000 9000000086be6c40 0000000000000000 0000000000000000 0000000000000000 4f2317da8a7e08c4 0000000000000101 4f2317da8a7e08c4 ... Call Trace[<90000000851b5ac0>] __qdisc_run+0xc8/0x8d8 [<9000000085130008>] __dev_queue_xmit+0x578/0x10f0 [<90000000853701c0>] ip6_finish_output2+0x2f0/0x950 [<9000000085374bc8>] ip6_finish_output+0x2b8/0x448 [<9000000085370b24>] ip6_xmit+0x304/0x858 [<90000000853c4438>] inet6_csk_xmit+0x100/0x170 [<90000000852b32f0>] __tcp_transmit_skb+0x490/0xdd0 [<90000000852b47fc>] tcp_connect+0xbcc/0x1168 [<90000000853b9088>] tcp_v6_connect+0x580/0x8a0 [<90000000852e7738>] __inet_stream_connect+0x170/0x480 [<90000000852e7a98>inetx50_stream [] /0x88 [<90000000850f2814>] __sys_connect+0xe4/0x110 [<90000000850f2858>] sys_connect+0x18/0x28 [<9000000085520c94>] do_syscall+0x94/0x1a0 [<9000000083df1fb8>] handle_syscall+0xb8/0x158 Code: 4001ad80 2400873f 2400832d <240073cc> 001137ff 001133ff 6407b41f 001503cc 0280041d ---[结束跟踪 0000000000000000]--- bpf_fifo_dequeue prog 返回一个指针 skb。指针被视为 32 位值并且在尾声中符号扩展为 64 位。此行为适用于大多数 bpf prog 类型但不适用于需要 LoongArch ABI 的 struct ops。让我们根据 LoongArch ABI ([1]) 签署 extend struct ops 返回值以及函数模型中的返回值规范。 [1] https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html (CVE-2025-40041) 请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

插件搜索

medium