CVE-2023-53716

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.

Package Linux Kernel
Published 2025-10-22
Last modified 2026-04-15
Patch available
Not yet patched

Affected versions

Linux kernel versions 6.2.15, 4.14.315, 4.19.283, 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.3.2 and later are affected. No fixed version recorded yet.

Affected from
≥ 6.2.15 ≥ 4.14.315 ≥ 4.19.283 ≥ 5.4.243 ≥ 5.10.180 ≥ 5.15.111 ≥ 6.1.28 ≥ 6.3.2

References

The following references provide additional information about CVE-2023-53716 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

8 patch commits total View all on NVD
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