Security Vulnerabilities fixed in kernel-rt RHSA-2021:2599

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034) kernel: security bypass in certs/blacklist.c and certs/system_keyring.c (CVE-2020-26541) kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034) kernel: security bypass in certs/blacklist.c and certs/system_keyring.c (CVE-2020-26541) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): kernel-rt: update RT source tree to the RHEL-8.4.z1 source tree (BZ#1965378) panic caused by i40e_msix_clean_rings [rhel-rt] (BZ#1965970) kernel-rt: update RT source tree to the RHEL-8.4.z1 source tree (BZ#1965378) panic caused by i40e_msix_clean_rings [rhel-rt] (BZ#1965970) SolutionFor details on how to apply this update, which includes the changes described in this advisory, refer to:https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

Affected Applications

kernel-rt

CVE References

CVE-2020-26541 CVE-2021-33034

Other References

https://access.redhat.com/errata/RHSA-2021:2599