Use After Free Affecting kernel-rt-debug-kvm package, versions *

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand()

RIP: 0010:kmem_cache_free+0xfa/0x1b0
Call Trace:
   qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx]
   scsi_queue_rq+0x5e2/0xa40
   __blk_mq_try_issue_directly+0x128/0x1d0
   blk_mq_request_issue_directly+0x4e/0xb0

Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free.

• https://access.redhat.com/security/cve/CVE-2021-46963
• https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93
• https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538
• https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f
• https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56
• https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053
• https://git.kernel.org/stable/c/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89