NULL Pointer Dereference Affecting kernel-rt package, versions <0:5.14.0-284.11.1.rt14.296.el9_2
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Test your applications- Snyk ID SNYK-ALMALINUX9-KERNELRT-5622359
- published 28 May 2023
- disclosed 9 May 2023
Introduced: 9 May 2023
CVE-2022-47929 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9
kernel-rt
to version 0:5.14.0-284.11.1.rt14.296.el9_2 or higher.
This issue was patched in ALSA-2023:2148
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt
package and not the kernel-rt
package as distributed by AlmaLinux
.
See How to fix?
for AlmaLinux:9
relevant fixed versions and status.
In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c.
References
- https://errata.almalinux.org/9/ALSA-2023-2148.html
- https://errata.almalinux.org/9/ALSA-2023-2458.html
- https://errata.almalinux.org/8/ALSA-2023-2736.html
- https://errata.almalinux.org/8/ALSA-2023-2951.html
- https://access.redhat.com/security/cve/CVE-2022-47929
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/errata/RHSA-2023:2458
- https://access.redhat.com/errata/RHSA-2023:2736
- https://access.redhat.com/errata/RHSA-2023:2951
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407
- https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html
- https://www.debian.org/security/2023/dsa-5324
- https://www.spinics.net/lists/netdev/msg555705.html