CVE-2023-53716

net: fix skb leak in __skb_tstamp_tx()

State: Published
Severity: Not scored
Published: Oct 22, 2025
Updated: May 23, 2026
Reserved: Oct 22, 2025

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

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	281072fb2a7294cde7acbf5375b879f40a8001b7 to before 82501f1ead557cbee1c2467654ec109a80334d22Affected 1f69c086b20e27763af28145981435423f088268 to before 779332447108545ef04682ea29af5f85c0202aeeAffected 602fa8af44fd55a58f9e94eb673e8adad2c6cc46 to before 58766252f6b2c0487cda6976a53d2bb03ae28e2aAffected 230a5ed7d813fb516de81d23f09d7506753e41e9 to before a594382ec6d0cc8cff5a8bc7e61b54e3858fb243Affected 43e4197dd5f6b474a8b16f8b6a42cd45cf4f9d1a to before e06841a2abf9c82735cee39e88b1d79464088840Affected cb52e7f24c1d01a536a847dff0d1d95889cc3b5c to before cc18b4685910d5d9de8314bae9c55790701b1811Affected 426384dd4980040651536fef5feac4dcc4d7ee4e to before f4d928c00254cfc9dd0ee7076f4a59bceec675f4Affected 50749f2dd6854a41830996ad302aef2ffaf011d8 to before 8a02fb71d7192ff1a9a47c9d937624966c6e09afAffected 30290f210ba7426ff7592fe2eb4114b1b5bad219Affected 6.2.15 to before 6.3Affected
LinuxLinux	4.14.315 to before 4.14.316Affected 4.19.283 to before 4.19.284Affected 5.4.243 to before 5.4.244Affected 5.10.180 to before 5.10.181Affected 5.15.111 to before 5.15.114Affected 6.1.28 to before 6.1.31Affected 6.3.2 to before 6.3.5Affected

Product

Versions

LinuxLinux

281072fb2a7294cde7acbf5375b879f40a8001b7 to before 82501f1ead557cbee1c2467654ec109a80334d22Affected
1f69c086b20e27763af28145981435423f088268 to before 779332447108545ef04682ea29af5f85c0202aeeAffected
602fa8af44fd55a58f9e94eb673e8adad2c6cc46 to before 58766252f6b2c0487cda6976a53d2bb03ae28e2aAffected
230a5ed7d813fb516de81d23f09d7506753e41e9 to before a594382ec6d0cc8cff5a8bc7e61b54e3858fb243Affected
43e4197dd5f6b474a8b16f8b6a42cd45cf4f9d1a to before e06841a2abf9c82735cee39e88b1d79464088840Affected
cb52e7f24c1d01a536a847dff0d1d95889cc3b5c to before cc18b4685910d5d9de8314bae9c55790701b1811Affected
426384dd4980040651536fef5feac4dcc4d7ee4e to before f4d928c00254cfc9dd0ee7076f4a59bceec675f4Affected
50749f2dd6854a41830996ad302aef2ffaf011d8 to before 8a02fb71d7192ff1a9a47c9d937624966c6e09afAffected
30290f210ba7426ff7592fe2eb4114b1b5bad219Affected
6.2.15 to before 6.3Affected

LinuxLinux

4.14.315 to before 4.14.316Affected
4.19.283 to before 4.19.284Affected
5.4.243 to before 5.4.244Affected
5.10.180 to before 5.10.181Affected
5.15.111 to before 5.15.114Affected
6.1.28 to before 6.1.31Affected
6.3.2 to before 6.3.5Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.