High 7.5Published May 27, 2026

CVE-2026-46102net: strparser: fix skb_head leak in strp_abort_strp()

Updated under an hour ago (Oct 26, 2026, 7:30 PM ET)

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Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-401
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3; from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before a470ed71c906cc8cbad0d74c9942216698911f8b; from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before c2e57695ec9ff9d42f23de70f3805199153d007b; from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before e9ae00490d474757c0f9c65073de83e6bb1e5a00; from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before 5327dad2ffe9c1b49881dd6d51ff3c6893847568; 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a builds before 19ca9475f18f991735f98a22e735c43e95e6298d; from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before 56082f442023db9be1a5a29d4ee361de4017c0b7; from 43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a before fe72340daaf1af588be88056faf98965f39e6032	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	all versions	CISA ADP
linux linux_kernel linux:linux_kernel	from 4.9 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4	NVD

References

References

https://git.kernel.org/stable/c/d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3	patch
https://git.kernel.org/stable/c/a470ed71c906cc8cbad0d74c9942216698911f8b	patch
https://git.kernel.org/stable/c/c2e57695ec9ff9d42f23de70f3805199153d007b	patch
https://git.kernel.org/stable/c/e9ae00490d474757c0f9c65073de83e6bb1e5a00	patch
https://git.kernel.org/stable/c/5327dad2ffe9c1b49881dd6d51ff3c6893847568	patch
https://git.kernel.org/stable/c/19ca9475f18f991735f98a22e735c43e95e6298d	patch
https://git.kernel.org/stable/c/56082f442023db9be1a5a29d4ee361de4017c0b7	patch
https://git.kernel.org/stable/c/fe72340daaf1af588be88056faf98965f39e6032	patch
https://cert-portal.siemens.com/productcert/html/ssa-784472.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.