CVEvulnerability

CVE-2021-45402

5.5 MEDIUM Published 2022-02-11 Modified 2026-10-08 Official page ↗
Status
Modified
Published
2022-02-11
Last modified
2026-10-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-668

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."

Affected configurations

• linux linux kernel (< 5.16) • linux linux kernel 5.16

Related

Weakness · CWE (1)

  • CWE-668 Exposure of Resource to Wrong Sphere weakness

References