CVE-2025-21757

Published: February 28, 2025Last modified: July 22, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix dst refleaks in rpl, seg6 and ioam6 lwtunnels dst_cache_get() gives us a reference, we need to release it. Discovered by the ioam6.sh test, kmemleak was recently fixed to catch per-cpu memory leaks.

Status

References

• https://git.kernel.org/stable/c/2248b8145053eb2ae35ca4cf694b885a086719bb
• https://git.kernel.org/stable/c/bf500b0d0cfe92ee62dfd4c2ace7f6353cf3a4c8
• https://git.kernel.org/stable/c/c71a192976ded2f2f416d03c4f595cdd4478b825
• https://git.kernel.org/stable/c/cb9950eaaf9cc76dfe490c06aa11f185b3c7f22b
• https://git.kernel.org/stable/c/d90f8f930c3053bb11f5def9aff5310a70429260