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LIN1021-1664 : Security Advisory - linux - CVE-2021-41864

Created: Oct 7, 2021    Updated: Dec 7, 2021
Resolved Date: Nov 1, 2021
Found In Version: 10.21.20.1
Fix Version: 10.21.20.7
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel

Description

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

CREATE(Triage):(User=admin) [CVE-2021-41864|https://nvd.nist.gov/vuln/detail/CVE-2021-41864]

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