SB2026052788 - Missing Release of Resource after Effective Lifetime in Linux kernel strparser

Description

This security bulletin contains information about 1 vulnerability.

1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-46102)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper resource management in strp_abort_strp() when aborting the stream parser after a message assembly timeout. A remote attacker can trigger repeated aborts with partially assembled messages to cause a denial of service.

The issue leaks a reference to a partially assembled message held in strp->skb_head.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/19ca9475f18f991735f98a22e735c43e95e6298d
• https://git.kernel.org/stable/c/5327dad2ffe9c1b49881dd6d51ff3c6893847568
• https://git.kernel.org/stable/c/56082f442023db9be1a5a29d4ee361de4017c0b7
• https://git.kernel.org/stable/c/e9ae00490d474757c0f9c65073de83e6bb1e5a00
• https://git.kernel.org/stable/c/fe72340daaf1af588be88056faf98965f39e6032