Description: mm: memcontrol: slab: fix obtain a reference to a freeing memcg
References:
Notes:
 carnil> Introduced in 3de7d4f25a74 ("mm: memcg/slab: optimize objcg stock draining").
 carnil> Vulnerable versions: 5.10.11 5.11-rc5.
Bugs:
upstream: released (5.13-rc1) [9f38f03ae8d5f57371b71aa6b4275765b65454fd]
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: released (5.10.37) [31df8bc4d3feca9f9c6b2cd06fd64a111ae1a0e6]
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.10.38-1)
6.1-bookworm-security: N/A "Fixed before branching point"
5.10-bullseye-security: N/A "Fixed before branching point"
4.19-buster-security: N/A "Vulnerable code not present"