VYPR
Unrated severityNVD Advisory· Published Apr 20, 2021· Updated Aug 3, 2024

CVE-2021-29155

CVE-2021-29155

Description

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.

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Affected products

233

Patches

Vulnerability mechanics

References

14

News mentions

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