CVEvulnerability
CVE-2025-71143
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-01-14
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-129
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.
Affected configurations
• linux linux kernel (>= 6.6.1 < 6.6.120)
• linux linux kernel (>= 6.7 < 6.12.64)
• linux linux kernel (>= 6.13 < 6.18.4)
• linux linux kernel 6.6
• linux linux kernel 6.19
Related
Weakness · CWE (1)
- CWE-129 Improper Validation of Array Index weakness
References
- https://git.kernel.org/stable/c/a317f63255ebc3dac378c79c5bff4f8d0561c290 Patch
- https://git.kernel.org/stable/c/cf33f0b7df13685234ccea7be7bfe316b60db4db Patch
- https://git.kernel.org/stable/c/eb1f3a6ab3efee2b52361879cdc2dc6b11f499c0 Patch
- https://git.kernel.org/stable/c/fbf57f5e453dadadb3d29b2d1dbe067e3dc4e236 Patch