In the Linux kernel, the following vulnerability has been resolved:
clk: bcm: dvp: 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 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
clk_dvp_probe() due to ->num being assigned after ->hws has been
accessed:
UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-bcm2711-dvp.c:59:2
index 0 is out of range for type 'struct clk_hw *[] __counted_by(num)' (aka 'struct clk_hw *[]')
Move the ->num initialization to before the first access of ->hws, which
clears up the warning.
References
Configurations
Configuration 1 (hide)
|
History
24 Mar 2025, 17:24
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/0dc913217fb79096597005bba9ba738e2db5cd02 - Patch | |
| References | () https://git.kernel.org/stable/c/9368cdf90f52a68120d039887ccff74ff33b4444 - Patch | |
| References | () https://git.kernel.org/stable/c/a1dd92fca0d6b58b55ed0484f75d4205dbb77010 - Patch |
Information
Published : 2024-06-25 15:15
Updated : 2025-03-24 17:24
NVD link : CVE-2024-39462
Mitre link : CVE-2024-39462
CVE.ORG link : CVE-2024-39462
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-400
Uncontrolled Resource Consumption