CVE-2021-46968

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix zcard and zqueue hot-unplug memleak Tests with kvm and a kmemdebug kernel showed, that on hot unplug the zcard and zqueue structs for the unplugged card or queue are not properly freed because of a mismatch with...

CVE-2021-46968

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix zcard and zqueue hot-unplug memleak Tests with kvm and a kmemdebug kernel showed, that on hot unplug the zcard and zqueue structs for the unplugged card or queue are not properly freed because of a mismatch with...

CVE-2021-46968

CVE-2021-46968 concerns the Linux kernel s390/zcrypt subsystem. The issue was a memleak on hot-unplug for zcard and zqueue due to a mismatch in get/put for an embedded kref counter. The fix adjusts kref handling: the counter starts at 1 on init and must drop to zero on unregister (for both card a...