CVE-2026-99029
net: sparx5: free the matchall entry on destroy
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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.
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | affected: 1ede4acf045ced70d9b72465e2e968aec71e0a42 … < fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e affected: 1ede4acf045ced70d9b72465e2e968aec71e0a42 … < cc7cc5955d22ea90555f09a680d4bf56d4a0c24a affected: 1ede4acf045ced70d9b72465e2e968aec71e0a42 … < 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e affected: 1ede4acf045ced70d9b72465e2e968aec71e0a42 … < 2b82e16d6084cbc651e3c902198f1945408ee1a5 default: unaffected |
| Linux | Linux | affected: 6.10 unaffected: 0 … < 6.10 unaffected: 6.12.113 … <= 6.12.* unaffected: 6.18.57 … <= 6.18.* unaffected: 7.2.11 … <= 7.2.* unaffected: 7.3 … <= * default: affected |
Open-source packages (GitHub Advisory / OSV)
net: sparx5: free the matchall entry on destroy
| Ecosystem | Package | Affected versions | Fixed in |
|---|---|---|---|
| >= 1ede4acf045ced70d9b72465e2e968aec71e0a42, < fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e; < cc7cc5955d22ea90555f09a680d4bf56d4a0c24a; < 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e; < 2b82e16d6084cbc651e3c902198f1945408ee1a5 | fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e, cc7cc5955d22ea90555f09a680d4bf56d4a0c24a, 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e, 2b82e16d6084cbc651e3c902198f1945408ee1a5 | ||
| Linux | Kernel | >= 6.10.0, < 6.12.113; >= 6.13.0, < 6.18.57; >= 6.19.0, < 7.2.11 | 6.12.113, 6.18.57, 7.2.11 |
Linux distribution status
References (7)
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git OSV
- https://git.kernel.org/stable/c/2b82e16d6084cbc651e3c902198f1945408ee1a5 NVD, CNA, OSV
- https://git.kernel.org/stable/c/44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e NVD, CNA, OSV
- https://git.kernel.org/stable/c/cc7cc5955d22ea90555f09a680d4bf56d4a0c24a NVD, CNA, OSV
- https://git.kernel.org/stable/c/fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e NVD, CNA, OSV
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99029.json OSV
- https://nvd.nist.gov/vuln/detail/CVE-2026-99029 OSV