CVE-2023-53357
md/raid10: check slab-out-of-bounds in md_bitmap_get_counter
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Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: check slab-out-of-bounds in md_bitmap_get_counter If we write a large number to md/bitmap_set_bits, md_bitmap_checkpage() will return -EINVAL because 'page >= bitmap->pages', but the return value was not checked immediately in md_bitmap_get_counter() in order to set *blocks value and slab-out-of-bounds occurs. Move check of 'page >= bitmap->pages' to md_bitmap_get_counter() and return directly if true.
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/374fb914304d9b500721007f3837ea8f1f9a2418
- https://git.kernel.org/stable/c/b0b971fe7d61411ede63c3291764dbde1577ef2c
- https://git.kernel.org/stable/c/39fa14e824acfd470db4f42c354297456bd82b53
- https://git.kernel.org/stable/c/a134dd582c0d5b6068efa308bd485cf1d00b3f65
- https://git.kernel.org/stable/c/be1a3ec63a840cc9e59a033acf154f56255699a1
References (8)
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
- HIGH
- Integrity
- NONE
- Availability
- HIGH
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