RHSA-2021:2720: Important: kpatch-patch security update
Published Jul 20, 2021
·Updated
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.Security Fix(es): kernel: sizet-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909) kernel: use-after-free in net/bluetooth/hcievent.c when destroying an hcichan (CVE-2021-33034) 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.
Affected Software
84 affected componentsFixes available
redhat/kpatch-patch<4_18_0-193_13_2-1-10.el8_2
4_18_0-193_13_2-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-1-10.el8_2
4_18_0-193_14_3-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-1-10.el8_2
4_18_0-193_19_1-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-1-8.el8_2
4_18_0-193_28_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-1-8.el8_2
4_18_0-193_29_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-1-8.el8_2
4_18_0-193_37_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-1-8.el8_2
4_18_0-193_40_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-1-8.el8_2
4_18_0-193_41_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-1-5.el8_2
4_18_0-193_46_1-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-1-5.el8_2
4_18_0-193_47_1-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-1-2.el8_2
4_18_0-193_51_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-1-1.el8_2
4_18_0-193_56_1-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_13_2-1-10.el8_2
4_18_0-193_13_2-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_13_2-debuginfo-1-10.el8_2
4_18_0-193_13_2-debuginfo-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_13_2-debugsource-1-10.el8_2
4_18_0-193_13_2-debugsource-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-1-10.el8_2
4_18_0-193_14_3-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-debuginfo-1-10.el8_2
4_18_0-193_14_3-debuginfo-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-debugsource-1-10.el8_2
4_18_0-193_14_3-debugsource-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-1-10.el8_2
4_18_0-193_19_1-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-debuginfo-1-10.el8_2
4_18_0-193_19_1-debuginfo-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-debugsource-1-10.el8_2
4_18_0-193_19_1-debugsource-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-1-8.el8_2
4_18_0-193_28_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-debuginfo-1-8.el8_2
4_18_0-193_28_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-debugsource-1-8.el8_2
4_18_0-193_28_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-1-8.el8_2
4_18_0-193_29_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-debuginfo-1-8.el8_2
4_18_0-193_29_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-debugsource-1-8.el8_2
4_18_0-193_29_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-1-8.el8_2
4_18_0-193_37_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-debuginfo-1-8.el8_2
4_18_0-193_37_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-debugsource-1-8.el8_2
4_18_0-193_37_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-1-8.el8_2
4_18_0-193_40_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-debuginfo-1-8.el8_2
4_18_0-193_40_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-debugsource-1-8.el8_2
4_18_0-193_40_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-1-8.el8_2
4_18_0-193_41_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-debuginfo-1-8.el8_2
4_18_0-193_41_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-debugsource-1-8.el8_2
4_18_0-193_41_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-1-5.el8_2
4_18_0-193_46_1-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-debuginfo-1-5.el8_2
4_18_0-193_46_1-debuginfo-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-debugsource-1-5.el8_2
4_18_0-193_46_1-debugsource-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-1-5.el8_2
4_18_0-193_47_1-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-debuginfo-1-5.el8_2
4_18_0-193_47_1-debuginfo-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-debugsource-1-5.el8_2
4_18_0-193_47_1-debugsource-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-1-2.el8_2
4_18_0-193_51_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-debuginfo-1-2.el8_2
4_18_0-193_51_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-debugsource-1-2.el8_2
4_18_0-193_51_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-1-1.el8_2
4_18_0-193_56_1-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-debuginfo-1-1.el8_2
4_18_0-193_56_1-debuginfo-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-debugsource-1-1.el8_2
4_18_0-193_56_1-debugsource-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_13_2-1-10.el8_2
4_18_0-193_13_2-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_13_2-debuginfo-1-10.el8_2
4_18_0-193_13_2-debuginfo-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_13_2-debugsource-1-10.el8_2
4_18_0-193_13_2-debugsource-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-1-10.el8_2
4_18_0-193_14_3-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-debuginfo-1-10.el8_2
4_18_0-193_14_3-debuginfo-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_14_3-debugsource-1-10.el8_2
4_18_0-193_14_3-debugsource-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-1-10.el8_2
4_18_0-193_19_1-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-debuginfo-1-10.el8_2
4_18_0-193_19_1-debuginfo-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_19_1-debugsource-1-10.el8_2
4_18_0-193_19_1-debugsource-1-10.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-1-8.el8_2
4_18_0-193_28_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-debuginfo-1-8.el8_2
4_18_0-193_28_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_28_1-debugsource-1-8.el8_2
4_18_0-193_28_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-1-8.el8_2
4_18_0-193_29_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-debuginfo-1-8.el8_2
4_18_0-193_29_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_29_1-debugsource-1-8.el8_2
4_18_0-193_29_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-1-8.el8_2
4_18_0-193_37_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-debuginfo-1-8.el8_2
4_18_0-193_37_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_37_1-debugsource-1-8.el8_2
4_18_0-193_37_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-1-8.el8_2
4_18_0-193_40_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-debuginfo-1-8.el8_2
4_18_0-193_40_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_40_1-debugsource-1-8.el8_2
4_18_0-193_40_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-1-8.el8_2
4_18_0-193_41_1-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-debuginfo-1-8.el8_2
4_18_0-193_41_1-debuginfo-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_41_1-debugsource-1-8.el8_2
4_18_0-193_41_1-debugsource-1-8.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-1-5.el8_2
4_18_0-193_46_1-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-debuginfo-1-5.el8_2
4_18_0-193_46_1-debuginfo-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_46_1-debugsource-1-5.el8_2
4_18_0-193_46_1-debugsource-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-1-5.el8_2
4_18_0-193_47_1-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-debuginfo-1-5.el8_2
4_18_0-193_47_1-debuginfo-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_47_1-debugsource-1-5.el8_2
4_18_0-193_47_1-debugsource-1-5.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-1-2.el8_2
4_18_0-193_51_1-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-debuginfo-1-2.el8_2
4_18_0-193_51_1-debuginfo-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_51_1-debugsource-1-2.el8_2
4_18_0-193_51_1-debugsource-1-2.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-1-1.el8_2
4_18_0-193_56_1-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-debuginfo-1-1.el8_2
4_18_0-193_56_1-debuginfo-1-1.el8_2
redhat/kpatch-patch<4_18_0-193_56_1-debugsource-1-1.el8_2
4_18_0-193_56_1-debugsource-1-1.el8_2
Remediation
Event History
Jun 4, 2026
Advisory Published
via Red Hat·08:20 PM
Data Sourced
via Red Hat·08:20 PM
RemedyDescriptionAffected Software
Frequently Asked Questions
1
What is the severity of RHSA-2021:2720?
The severity of RHSA-2021:2720 is classified as important.
2
How do I fix RHSA-2021:2720?
To fix RHSA-2021:2720, update the kpatch-patch package to the latest version addressing the vulnerability.
3
What vulnerabilities are addressed in RHSA-2021:2720?
RHSA-2021:2720 addresses a size_t-to-int conversion vulnerability and a use-after-free vulnerability in the kernel.
4
Which versions of the kpatch-patch package are affected by RHSA-2021:2720?
Affected versions include various iterations of the kpatch-patch package up to the specified version types listed in the advisory.
5
Is the kpatch-patch package for RHSA-2021:2720 available for multiple architectures?
Yes, the kpatch-patch package for RHSA-2021:2720 is available for multiple architectures, including x86_64 and ppc64le.