CVE-2026-43244

CVE-2026-43244 affects the Linux kernel KCM (Kernel Connection Multiplexer). The issue arises during partial sendmsg operations: when kcm_sendmsg fills MAX_SKB_FRAGS, it allocates a new skb in frag_list and may copy data; if the copy fails, the new tail skb can have zero frags, leaving an empty e...

PT-2026-37584

In the Linux kernel, the following vulnerability has been resolved: kcm: fix zero-frag skb in frag list on partial sendmsg error Syzkaller reported a warning in kcm write msgs when processing a message with a zero-fragment skb in the frag list. When kcm sendmsg fills MAX SKB FRAGS fragments in th...