net: sparx5: free the matchall entry on destroy
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.12.113, 6.18.57, 7.2.11
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Linux Linux
From 1ede4acf045ced70d9b72465e2e968aec71e0a42 · fixed in fa0c27d9e17ee2e46d4b8274a6fde706f0d6725e; From 1ede4acf045ced70d9b72465e2e968aec71e0a42 · fixed in cc7cc5955d22ea90555f09a680d4bf56d4a0c24a; From 1ede4acf045ced70d9b72465e2e968aec71e0a42 · fixed in 44efb6d92dd5a2b1dd9553d92ef0eebde135fc6e; From 1ede4acf045ced70d9b72465e2e968aec71e0a42 · fixed in 2b82e16d6084cbc651e3c902198f1945408ee1a5
- Linux Linux
6.10
- KernelLinux
From 6.10.0 · fixed in 6.12.113; From 6.13.0 · fixed in 6.18.57; From 6.19.0 · fixed in 7.2.11