CVE-2026-46102

net: strparser: fix skb_head leak in strp_abort_strp()

HIGH
7.5
CVSS Score
Published: May 27, 2026 at 12:59 PM UTC
Updated: October 19, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.9 ≤ v < 5.10.2585.11 ≤ v < 5.15.2095.16 ≤ v < 6.1.1756.13 ≤ v < 6.18.276.19 ≤ v < 7.0.46.2 ≤ v < 6.6.1406.7 ≤ v < 6.12.864.943a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a
Vendor states this is fixed in 19ca9475f18f991735f98a22e735c43e95e6298d (fixed)
Vendor states this is fixed in 5327dad2ffe9c1b49881dd6d51ff3c6893847568 (fixed)
Vendor states this is fixed in 56082f442023db9be1a5a29d4ee361de4017c0b7 (fixed)
Vendor states this is fixed in a470ed71c906cc8cbad0d74c9942216698911f8b (fixed)
Vendor states this is fixed in c2e57695ec9ff9d42f23de70f3805199153d007b (fixed)
Vendor states this is fixed in d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3 (fixed)
Vendor states this is fixed in e9ae00490d474757c0f9c65073de83e6bb1e5a00 (fixed)
Vendor states this is fixed in fe72340daaf1af588be88056faf98965f39e6032 (fixed)
Vendor states this is fixed in 4.9 (unaffected)
Vendor states this is fixed in 5.10.258 (unaffected)
Vendor states this is fixed in 5.15.209 (unaffected)
Vendor states this is fixed in 6.1.175 (unaffected)
Vendor states this is fixed in 6.12.86 (unaffected)
Vendor states this is fixed in 6.18.27 (unaffected)
Vendor states this is fixed in 6.6.140 (unaffected)
Vendor states this is fixed in 7.0.4 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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