bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: I...
CVE-2021-20321 is fixed in 38 products on 1 platform, first by RHSA-2021:5227, released December 21, 2021. It is not reported as exploited. Patch Radar priority: Routine.
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: In Overlayfs missing a check for a negative dentry before calling vfs_rename() (CVE-2021-20321) 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): * panic while breaking a lease/delegation after user mode helper invocation (BZ#2010333) * The ASR driver is causing a system crash in RHEL8.4 compared to RHEL8.3 due to kernel changes (BZ#2016384) * RHEL8: DFS provided SMB shares are not accessible following unprivileged access (BZ#2017177) * Avoid hitting the rtnl_trylock/restart_syscall logic in net-sysfs when possible (BZ#2021165) * RHEL8: x86/Kconfig: Do not enable AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT (BZ#2024678) * RHEL8.4-[Regression][P10][DD2.0][Rainier/Denali] - system crashed while offlining and onlining cores (BZ#2026450)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| bpftool · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel · rocky 8 | 0:4.18.0-348.7.1.el8_5 | RLSA-2021:5227 | Dec 21, 2021 |
| kernel-abi-stablelists · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-abi-stablelists · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-core · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-core · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-cross-headers · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-cross-headers · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-debug · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-debug · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-debug-core · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-debug-core · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-debug-devel · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-debug-devel · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-debug-modules · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-debug-modules · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-debug-modules-extra · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-debug-modules-extra · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-devel · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-devel · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-doc · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-doc · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-headers · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-modules · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-modules · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-modules-extra · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-modules-extra · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-rt · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt · rocky 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RLSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-core · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-debug · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-debug-core · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-debug-devel · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-debug-kvm · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-debug-modules · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-debug-modules-extra · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-devel · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-kvm · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-modules · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-rt-modules-extra · RHEL 8 | 0:4.18.0-348.7.1.rt7.137.el8_5 | RHSA-2021:5241 | Dec 21, 2021 |
| kernel-tools · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-tools · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-tools-libs · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-tools-libs · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-tools-libs-devel · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-tools-libs-devel · almalinux 8 | 4.18.0-348.7.1.el8_5 | ALSA-2021:5227 | Dec 21, 2021 |
| kernel-tools-libs-devel · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| kernel-zfcpdump · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-zfcpdump-core · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-zfcpdump-devel · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-zfcpdump-modules · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| kernel-zfcpdump-modules-extra · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| linux · Debian 12.15 (bookworm) | 5.14.12-1 | DEBIAN-CVE-2021-20321 | Feb 18, 2022 |
| linux · Debian 13.5 (trixie) | 5.14.12-1 | DEBIAN-CVE-2021-20321 | Feb 18, 2022 |
| linux · Debian 14 | 5.14.12-1 | DEBIAN-CVE-2021-20321 | Feb 18, 2022 |
| perf · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| perf · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
| python3-perf · RHEL 8 | 0:4.18.0-348.7.1.el8_5 | RHSA-2021:5227 | Dec 21, 2021 |
| python3-perf · ol 8 | 0:4.18.0-348.7.1.el8_5 | ELSA-2021-5227 | Dec 22, 2021 |
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