VulnerabilityPublished 23 Oct 2026

CVE-2026-99029: Linux kernel · net: sparx5: free the matchall entry on destroy

Source GCVE Database

Authoritative record:CVE-2026-99029· Low

Not known to be exploited · fixed in fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e, cc7cc5955d22ea90555f09a680d4bf56d4a0c24a, 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e +1

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-v4vf-8pf4-46v5

What to do

Upgrade Linux kernel to fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e, cc7cc5955d22ea90555f09a680d4bf56d4a0c24a, 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e or 2b82e16d6084cbc651e3c902198f1945408ee1a5.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 1ede4acf045ced70d9b72465e2e968aec71e0a42, < fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e	Fixed in fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e
LinuxLinux	Affected ≥ 1ede4acf045ced70d9b72465e2e968aec71e0a42, < cc7cc5955d22ea90555f09a680d4bf56d4a0c24a	Fixed in cc7cc5955d22ea90555f09a680d4bf56d4a0c24a
LinuxLinux	Affected ≥ 1ede4acf045ced70d9b72465e2e968aec71e0a42, < 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e	Fixed in 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e
LinuxLinux	Affected ≥ 1ede4acf045ced70d9b72465e2e968aec71e0a42, < 2b82e16d6084cbc651e3c902198f1945408ee1a5	Fixed in 2b82e16d6084cbc651e3c902198f1945408ee1a5
LinuxLinux	Affected =6.10	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: free the matchall entry on destroy sparx5_tc_matchall_replace() allocates a struct sparx5_mall_entry for every offloaded matchall filter and adds it to sparx5->mall_entries. sparx5_tc_matchall_destroy() removes the entry from the list, but never frees it, so the entry of every deleted mirror and goto matchall filter is leaked. Free the entry after unlinking it. The leak was discovered by an AI code review agent, and reproduced with kmemleak on a lan969x EV board (EV23X71A) by repeatedly adding and deleting matchall mirror and goto filters. With the fix, kmemleak no longer reports the leak.

References

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