CVEvulnerability

CVE-2026-58084

5.5 MEDIUM Published 2026-08-19 Modified 2026-10-27 Official page ↗
Status
Analyzed
Published
2026-08-19
Last modified
2026-10-27
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-908

Description

To retrieve the previous timer value, the kernel calls realtimer_gettime(), which obtains the current time for the timer's clock. For a timer using CLOCK_TAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to userspace. An unprivileged local user can obtain uninitialized kernel stack memory by creating a POSIX timer with CLOCK_TAI and calling timer_settime(2), potentially disclosing sensitive kernel data.

Affected configurations

• freebsd freebsd 15.0 • freebsd freebsd 15.1

Related

Weakness · CWE (1)

  • CWE-908 Use of Uninitialized Resource weakness

References