Azure Linux 3.0 Security Update: kernel (CVE-2024-44946)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-44946 advisory. - In the Linux kernel, the following vulnerability has been resolved: kcm: Serialise kcmsendmsg for the same...

CVE-2024-44946

In the Linux kernel, the following vulnerability has been resolved: kcm: Serialise kcmsendmsg for the same socket. syzkaller reported UAF in kcmrelease. 0 The scenario is 1. Thread A builds a skb with MSGMORE and sets kcm-seqskb. 2. Thread A resumes building skb from kcm-seqskb but is blocked by...

CVE-2024-44946

CVE-2024-44946 (Linux kernel, KCM) has a confirmed UAF/double-free risk in kcm_release arising when one thread frees an skb still in the KCM write queue due to concurrent kcm_sendmsg() operations. The issue occurs when a thread building a MSG_MORE skb holds kcm->seq_skb while another thread co...