In __speculation_ctrl_update of process.c, there is a possible way to disable Speculative Store Bypass Disable due to a logic error, which allows for side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-10766US | medium5.5 | — | ||
A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protect… | ||||
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references
External citations — patches, advisories, analysis.
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