Linux Linux Kernel Missing Release Of Memory After Effective Lifetime Exposed to Unauthenticated Network Attackers

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-46102

Key Details

CVE	CVE-2026-46102
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-15
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Affected products	Linux Kernel and Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classified as	CWE-401 (Missing Release of Memory after Effective Lifetime)
Exploitation prediction (EPSS)	0.81% probability of exploitation in the next 30 days (56% percentile) -- FIRST.org's EPSS model.

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Siemens

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Subsystems	Controllers & Field I/O, OT Supporting Infrastructure
Sectors	All Sectors

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. (NVD)

Monitor Linux's and Siemens's web pages for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-46102
CVE	https://www.cve.org/CVERecord?id=CVE-2026-46102

Source

Reference

NVD

CVE