Description: cachefiles: fix memory leak in cachefiles_add_cache()
References:
Notes:
 carnil> Introduced in 9ae326a69004 ("CacheFiles: A cache that backs onto a mounted
 carnil> filesystem"). Vulnerable versions: 2.6.30-rc1.
Bugs:
upstream: released (6.8-rc6) [e21a2f17566cbd64926fb8f16323972f7a064444]
6.8-upstream-stable: N/A "Fixed before branching point"
6.7-upstream-stable: released (6.7.7) [9cac69912052a4def571fedf1cb9bb4ec590e25a]
6.6-upstream-stable: released (6.6.19) [38e921616320d159336b0ffadb09e9fb4945c7c3]
6.1-upstream-stable: released (6.1.80) [8b218e2f0a27a9f09428b1847b4580640b9d1e58]
5.10-upstream-stable: released (5.10.212) [43eccc5823732ba6daab2511ed32dfc545a666d8]
4.19-upstream-stable: released (4.19.309) [cb5466783793e66272624cf71925ae1d1ba32083]
sid: released (6.7.7-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: needed
4.19-buster-security: needed