CVE-2020-26541

kernel-rt-kvm: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...

CVE-2020-26541 is fixed in 37 products on 1 platform, first by RHSA-2021:2570, released June 29, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
6.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0053
44th percentile

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) 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)

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
bpftool · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-abi-stablelists · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-abi-stablelists · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-core · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-core · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-cross-headers · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-debug · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-debug · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-debug-core · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-debug-core · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-debug-devel · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-debug-devel · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-debug-modules · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-debug-modules · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-debug-modules-extra · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-debug-modules-extra · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-devel · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-devel · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-doc · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-doc · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-headers · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-modules · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-modules · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-modules-extra · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-modules-extra · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-rt · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-core · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-debug · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-debug-core · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-debug-devel · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-debug-kvm · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-debug-modules · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-debug-modules-extra · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-devel · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-kvm · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-modules · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-rt-modules-extra · RHEL 8 0:4.18.0-305.7.1.rt7.79.el8_4 RHSA-2021:2599 Jun 29, 2021
kernel-tools · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-tools · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-tools-libs · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-tools-libs · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-tools-libs-devel · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-tools-libs-devel · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
kernel-zfcpdump · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-zfcpdump-core · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-zfcpdump-devel · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-zfcpdump-modules · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
kernel-zfcpdump-modules-extra · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
perf · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
perf · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021
python3-perf · RHEL 8 0:4.18.0-305.7.1.el8_4 RHSA-2021:2570 Jun 29, 2021
python3-perf · ol 8 0:4.18.0-305.7.1.el8_4 ELSA-2021-2570 Jul 1, 2021

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