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.
Published: 2021-03-30
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-16124 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.
History

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Fedoraproject Fedora
Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-03T22:11:06.383Z

Reserved: 2021-03-30T00:00:00.000Z

Link: CVE-2021-29648

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-30T21:15:14.217

Modified: 2024-11-21T06:01:34.163

Link: CVE-2021-29648

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-08T00:00:00Z

Links: CVE-2021-29648 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses