CVE-2024-41048 skmsg: Skip zero length skb in sk_msg_recvmsg

In the Linux kernel, the following vulnerability has been resolved: skmsg: Skip zero length skb in skmsgrecvmsg When running BPF selftests ./testprogs -t sockmapbasic on a Loongarch platform, the following kernel panic occurs: ... Oops1: CPU: 22 PID: 2824 Comm: testprogs Tainted: G OE 6.10.0-rc2+...

CVE-2024-41048 skmsg: Skip zero length skb in sk_msg_recvmsg

In the Linux kernel, the following vulnerability has been resolved: skmsg: Skip zero length skb in skmsgrecvmsg When running BPF selftests ./testprogs -t sockmapbasic on a Loongarch platform, the following kernel panic occurs: ... Oops1: CPU: 22 PID: 2824 Comm: testprogs Tainted: G OE 6.10.0-rc2+...

CVE-2024-41048

CVE-2024-41048 affects the Linux kernel. The bug arises in sk_msg_recvmsg() where a zero‑length skb (skb->len == 0) is enqueued; on Loongarch, this leads to a NULL page being passed to copy_page_to_iter(), then to page_address(), causing a kernel panic. The root cause is the zero‑length skb th...