CVE-2025-71143

HIGH

Linux kernel - Info Disclosure

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: clk: samsung: exynos-clkout: Assign .num before accessing .hws Commit f316cdff8d67 ("clk: Annotate struct clk_hw_onecell_data with __counted_by") annotated the hws member of 'struct clk_hw_onecell_data' with __counted_by, which informs the bounds sanitizer (UBSAN_BOUNDS) about the number of elements in .hws[], so that it can warn when .hws[] is accessed out of bounds. As noted in that change, the __counted_by member must be initialized with the number of elements before the first array access happens, otherwise there will be a warning from each access prior to the initialization because the number of elements is zero. This occurs in exynos_clkout_probe() due to .num being assigned after .hws[] has been accessed: UBSAN: array-index-out-of-bounds in drivers/clk/samsung/clk-exynos-clkout.c:178:18 index 0 is out of range for type 'clk_hw *[*]' Move the .num initialization to before the first access of .hws[], clearing up the warning.

Scores

CVSS v3 7.8
EPSS 0.0002
EPSS Percentile 4.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-129
Status published
Products (16)
linux/Kernel 6.13.0 - 6.18.4linux
linux/Kernel 6.6.0 - 6.6.120linux
linux/Kernel 6.7.0 - 6.12.64linux
Linux/Linux < 6.6
Linux/Linux 6.12.64 - 6.12.*
Linux/Linux 6.18.4 - 6.18.*
Linux/Linux 6.19
Linux/Linux 6.6
Linux/Linux 6.6.120 - 6.6.*
Linux/Linux f316cdff8d677db9ad9c90acb44c4cd535b0ee27 - a317f63255ebc3dac378c79c5bff4f8d0561c290
... and 6 more
Published Jan 14, 2026
Tracked Since Feb 18, 2026