Vulnerability Monitor

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CVE-2023-23005

In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.

Published

2023-03-01T20:15:15.100

Last Modified

2025-03-19T19:15:38.563

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-476
Type: Secondary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 6.2	Yes
Operating System	suse	linux_enterprise_server	15	Yes

References

https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2 Mailing List, Patch, Release Notes ([email protected])
https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5ee Patch ([email protected])
https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2 Mailing List, Patch, Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5ee Patch (af854a3a-2127-422b-91ae-364da2661108)