CVE-2025-39728
What it is
In the Linux kernel, the following vulnerability has been resolved: clk: samsung: Fix UBSAN panic in samsung_clk_init() With UBSAN_ARRAY_BOUNDS=y, I'm hitting the below panic due to dereferencing `ctx->clk_data.hws` before setting `ctx->clk_data.num = nr_clks`. Move that up to fix the crash. UBSAN: array index out of bounds: 00000000f2005512 [#1] PREEMPT SMP <snip> Call trace: samsung_clk_init+0x110/0x124 (P) samsung_clk_init+0x48/0x124 (L) samsung_cmu_register_one+0x3c/0xa0 exynos_arm64_register_cmu+0x54/0x64 __gs101_cmu_top_of_clk_init_declare+0x28/0x60 ...
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-129
- Record status
- Modified
Affected
- Linux Kernel < 5.10.236
- Linux Kernel < 5.15.180
- Linux Kernel < 6.1.134
- Linux Kernel < 6.6.87
- Linux Kernel < 6.12.23
- Linux Kernel < 6.13.11
- Linux Kernel < 6.14.2
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-39728.md and follow it. Check whether this project is affected by CVE-2025-39728. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/00307934eb94aaa0a99addfb37b9fe206f945004
- https://git.kernel.org/stable/c/0fef48f4a70e45a93e73c39023c3a6ea624714d6
- https://git.kernel.org/stable/c/157de9e48007a20c65d02fc0229a16f38134a72d
- https://git.kernel.org/stable/c/24307866e0ac0a5ddb462e766ceda5e27a6fbbe3
- https://git.kernel.org/stable/c/4d29a6dcb51e346595a15b49693eeb728925ca43
- https://git.kernel.org/stable/c/a1500b98cd81a32fdfb9bc63c33bb9f0c2a0a1bf
- https://git.kernel.org/stable/c/d19d7345a7bcdb083b65568a11b11adffe0687af
- https://git.kernel.org/stable/c/d974e177369c034984cece9d7d4fada9f8b9c740
References
- https://git.kernel.org/stable/c/00307934eb94aaa0a99addfb37b9fe206f945004
- https://git.kernel.org/stable/c/0fef48f4a70e45a93e73c39023c3a6ea624714d6
- https://git.kernel.org/stable/c/157de9e48007a20c65d02fc0229a16f38134a72d
- https://git.kernel.org/stable/c/24307866e0ac0a5ddb462e766ceda5e27a6fbbe3
- https://git.kernel.org/stable/c/4d29a6dcb51e346595a15b49693eeb728925ca43
- https://git.kernel.org/stable/c/a1500b98cd81a32fdfb9bc63c33bb9f0c2a0a1bf
- https://git.kernel.org/stable/c/d19d7345a7bcdb083b65568a11b11adffe0687af
- https://git.kernel.org/stable/c/d974e177369c034984cece9d7d4fada9f8b9c740
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html