CVE-2026-46102

HIGH

net: strparser: fix skb_head leak in strp_abort_strp()

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.5
EPSS 0.0050
EPSS Percentile 39.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (27)
linux/Kernel 4.9.0 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.86linux
Linux/Linux < 4.9
Linux/Linux 4.9
Linux/Linux 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a - 19ca9475f18f991735f98a22e735c43e95e6298d
... and 17 more
Published May 27, 2026
Tracked Since May 27, 2026