net: fix skb leak in __skb_tstamp_tx()(CVE-2023-53716)

概要

net: fix skb leak in __skb_tstamp_tx()

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

In the Linux kernel, the following vulnerability has been resolved:

net: fix skb leak in __skb_tstamp_tx()

Commit 50749f2dd685 ("tcp/udp: Fix memleaks of sk and zerocopy skbs with
TX timestamp.") added a call to skb_orphan_frags_rx() to fix leaks with
zerocopy skbs. But it ended up adding a leak of its own. When
skb_orphan_frags_rx() fails, the function just returns, leaking the skb
it just cloned. Free it before returning.

This bug was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.

出典: OSV.dev (Open Source Vulnerabilities) NVD OSV

影響パッケージ

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"4.14.315"},{"fixed":"4.14.316"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.19.283"},{"fixed":"4.19.284"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.4.243"},{"fixed":"5.4.244"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.10.180"},{"fixed":"5.10.181"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.15.111"},{"fixed":"5.15.114"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.1.28"},{"fixed":"6.1.31"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.3.2"},{"fixed":"6.3.5"}]}]

ディストリビューション別の修正状況

各ディストリビューションが公開している、この CVE の修正パッケージ

Debian DEBIAN-CVE-2023-53716 linux 修正版: 5.10.191-1
Ubuntu UBUNTU-CVE-2023-53716 linux-hwe-edge

概要

原文の説明

影響パッケージ

ディストリビューション別の修正状況

参照URL