CVE-2024-38635
soundwire: cadence: fix invalid PDI offset
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Description
In the Linux kernel, the following vulnerability has been resolved: soundwire: cadence: fix invalid PDI offset For some reason, we add an offset to the PDI, presumably to skip the PDI0 and PDI1 which are reserved for BPT. This code is however completely wrong and leads to an out-of-bounds access. We were just lucky so far since we used only a couple of PDIs and remained within the PDI array bounds. A Fixes: tag is not provided since there are no known platforms where the out-of-bounds would be accessed, and the initial code had problems as well. A follow-up patch completely removes this useless offset.
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/002364b2d594a9afc0385c09e00994c510b1d089
- https://git.kernel.org/stable/c/2ebcaa0e5db9b6044bb487ae1cf41bc601761567
- https://git.kernel.org/stable/c/4e99103f757cdf636c6ee860994a19a346a11785
- https://git.kernel.org/stable/c/7eeef1e935d23db5265233d92395bd5c648a4021
- https://git.kernel.org/stable/c/8ee1b439b1540ae543149b15a2a61b9dff937d91
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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