CVE-2024-39489: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: fix memleak in seg6_hmac_init_algo seg6_hmac_init_algo returns without cleaning up the previous allocations if one fails, so it's going to leak all that memory and the crypto tfms. Update seg6_hmac_exit to only free the memory when allocated, so we can reuse the code directly.

Affected products

• Linux Linux Kernel: from 4.10, before 4.19.316 (fixed in 4.19.316); from 4.20, before 5.4.278 (fixed in 5.4.278); from 5.5, before 5.10.219 (fixed in 5.10.219); from 5.11, before 5.15.161 (fixed in 5.15.161); from 5.16, before 6.1.93 (fixed in 6.1.93); from 6.2, before 6.6.33 (fixed in 6.6.33); …

Published 2024-07-10. Last modified 2026-06-17.