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An issue was discovered in the Linux kernel before 5.11...

Moderate severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 29, 2023

Package

No package listedSuggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF), which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or check_btf_info in kernel/bpf/verifier.c), aka CID-350a5c4dd245.

References

Published by the National Vulnerability Database Mar 30, 2021
Published to the GitHub Advisory Database May 24, 2022
Last updated Jan 29, 2023

Severity

Moderate

EPSS score

0.045%
(15th percentile)

Weaknesses

CVE ID

CVE-2021-29648

GHSA ID

GHSA-5j67-5c69-hf75

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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