Description
In the Linux kernel, the following vulnerability has been resolved: net: strparser: fix skb_head leak in strp_abort_strp() When the stream parser is aborted, for example after a message assembly timeout, it can still hold a reference to a partially assembled message in strp->skb_head. That skb is not released in strp_abort_strp(), which leaks the partially assembled message and can be triggered repeatedly to exhaust memory. Fix this by freeing strp->skb_head and resetting the parser state in the abort path. Leave strp_stop() unchanged so final cleanup still happens in strp_done() after the work and timer have been synchronized.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/19ca9475f18f991735f98a22e735c43e95e6298d Patch
- git.kernel.org/stable/c/5327dad2ffe9c1b49881dd6d51ff3c6893847568 Patch
- git.kernel.org/stable/c/56082f442023db9be1a5a29d4ee361de4017c0b7 Patch
- git.kernel.org/stable/c/a470ed71c906cc8cbad0d74c9942216698911f8b Patch
- git.kernel.org/stable/c/c2e57695ec9ff9d42f23de70f3805199153d007b Patch
- git.kernel.org/stable/c/d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3 Patch
- git.kernel.org/stable/c/e9ae00490d474757c0f9c65073de83e6bb1e5a00 Patch
- git.kernel.org/stable/c/fe72340daaf1af588be88056faf98965f39e6032 Patch
- cert-portal.siemens.com/productcert/html/ssa-784472.html
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 47 · as of 14 November 2026
- CWE
- CWE-401
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.