Description: kfence: fix memory leak when cat kfence objects
References:
Notes:
 carnil> Introduced in 0ce20dd84089 ("mm: add Kernel Electric-Fence infrastructure").
 carnil> Vulnerable versions: 5.12-rc1.
Bugs:
upstream: released (5.16-rc7) [0129ab1f268b6cf88825eae819b9b84aa0a85634]
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: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.15.15-1)
6.1-bookworm-security: N/A "Fixed before branching point"
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"