CVE-2024-50188
net: phy: dp83869: fix memory corruption when enabling fiber
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Description
In the Linux kernel, the following vulnerability has been resolved: net: phy: dp83869: fix memory corruption when enabling fiber When configuring the fiber port, the DP83869 PHY driver incorrectly calls linkmode_set_bit() with a bit mask (1 << 10) rather than a bit number (10). This corrupts some other memory location -- in case of arm64 the priv pointer in the same structure. Since the advertising flags are updated from supported at the end of the function the incorrect line isn't needed at all and can be removed.
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/21b5af7f0c99b3bf1fd02016e6708b613acbcaf4
- https://git.kernel.org/stable/c/9ca634676ff66e1d616259e136f96f96b2a1759a
- https://git.kernel.org/stable/c/a842e443ca8184f2dc82ab307b43a8b38defd6a5
- https://git.kernel.org/stable/c/ad0d76b8ee5db063791cc2e7a30ffc9852ac37c4
- https://git.kernel.org/stable/c/c1944b4253649fc6f2fb53e7d6302eb414d2182c
References (10)
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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