UBUNTU-CVE-2023-1077
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.
02 / AFFECTED SOFTWARE
Affected packages
14 explicit affected versions
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24 explicit affected versions
58 explicit affected versions
4 explicit affected versions
47 explicit affected versions
1 explicit affected versions
69 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/7c4a5b89a0b5a57a64b601775b296abf77a9fe97
- https://seclists.org/oss-sec/2023/q1/126
- https://ubuntu.com/security/CVE-2023-1077
- https://ubuntu.com/security/notices/USN-6033-1
- https://ubuntu.com/security/notices/USN-6171-1
- https://ubuntu.com/security/notices/USN-6172-1
- https://ubuntu.com/security/notices/USN-6185-1
- https://ubuntu.com/security/notices/USN-6187-1
- https://ubuntu.com/security/notices/USN-6207-1
- https://ubuntu.com/security/notices/USN-6222-1
- https://ubuntu.com/security/notices/USN-6223-1
- https://ubuntu.com/security/notices/USN-6256-1
- https://www.cve.org/CVERecord?id=CVE-2023-1077