vulnerability
Red Hat: CVE-2021-45402: kernel: pointer leak in check_alu_op() of kernel/bpf/verifier.c
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:P/I:N/A:N) | Feb 11, 2022 | Jul 9, 2025 | Jul 9, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
Feb 11, 2022
Added
Jul 9, 2025
Modified
Jul 9, 2025
Description
The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."
Solution
no-fix-redhat-rpm-package
References
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