CVE-2023-52607
powerpc/mm: Fix null-pointer dereference in pgtable_cache_add
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Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtable_cache_add kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/145febd85c3bcc5c74d87ef9a598fc7d9122d532
- https://git.kernel.org/stable/c/21e45a7b08d7cd98d6a53c5fc5111879f2d96611
- https://git.kernel.org/stable/c/aa28eecb43cac6e20ef14dfc50b8892c1fbcda5b
- https://git.kernel.org/stable/c/ac3ed969a40357b0542d20f096a6d43acdfa6cc7
- https://git.kernel.org/stable/c/d482d61025e303a2bef3733a011b6b740215cfa1
References (9)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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