CVE-2023-53716

Linux Kernel Memory Leak in __skb_tstamp_tx()

Title source: llm
STIX 2.1

Description

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.

Scores

EPSS 0.0020
EPSS Percentile 9.8%

Details

Status published
Products (24)
linux/Kernel 4.14.315 - 4.14.316linux
linux/Kernel 4.19.283 - 4.19.284linux
linux/Kernel 5.10.180 - 5.10.181linux
linux/Kernel 5.15.111 - 5.15.114linux
linux/Kernel 5.4.243 - 5.4.244linux
linux/Kernel 6.1.28 - 6.1.31linux
linux/Kernel 6.3.2 - 6.3.5linux
Linux/Linux 1f69c086b20e27763af28145981435423f088268 - 779332447108545ef04682ea29af5f85c0202aee
Linux/Linux 230a5ed7d813fb516de81d23f09d7506753e41e9 - a594382ec6d0cc8cff5a8bc7e61b54e3858fb243
Linux/Linux 281072fb2a7294cde7acbf5375b879f40a8001b7 - 82501f1ead557cbee1c2467654ec109a80334d22
... and 14 more
Published Oct 22, 2025
Tracked Since Feb 18, 2026