CVE-2023-1077

Description

In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing memory corruption.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory debian.org Third-Party Advisory netapp.com
Affected: n/a Linux kernel
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97 patch mailing list
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html third party advisory mailing list
https://security.netapp.com/advisory/ntap-20230511-0002/ third party advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html mailing list

Frequently Asked Questions

What is the severity of CVE-2023-1077?
CVE-2023-1077 has been scored as a high severity vulnerability.
How to fix CVE-2023-1077?
To fix CVE-2023-1077, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-1077 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-1077 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-1077?
CVE-2023-1077 affects n/a Linux kernel.
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