CVE-2025-21785
What it is
In the Linux kernel, the following vulnerability has been resolved: arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array The loop that detects/populates cache information already has a bounds check on the array size but does not account for cache levels with separate data/instructions cache. Fix this by incrementing the index for any populated leaf (instead of any populated level).
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, 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
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Modified
Affected
- Linux Kernel < 6.1.129
- Linux Kernel < 6.6.79
- Linux Kernel < 6.12.16
- Linux Kernel < 6.13.4
- Linux Kernel 6.14
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Fix and advisories
- https://git.kernel.org/stable/c/4ff25f0b18d1d0174c105e4620428bcdc1213860
- https://git.kernel.org/stable/c/67b99a2b5811df4294c2ad50f9bff3b6a08bd618
- https://git.kernel.org/stable/c/715eb1af64779e1b1aa0a7b2ffb81414d9f708e5
- https://git.kernel.org/stable/c/875d742cf5327c93cba1f11e12b08d3cce7a88d2
- https://git.kernel.org/stable/c/ab90894f33c15b14c1cee6959ab6c8dcb09127f8
References
- https://git.kernel.org/stable/c/4371ac7b494e933fffee2bd6265d18d73c4f05aa
- https://git.kernel.org/stable/c/4ff25f0b18d1d0174c105e4620428bcdc1213860
- https://git.kernel.org/stable/c/67b99a2b5811df4294c2ad50f9bff3b6a08bd618
- https://git.kernel.org/stable/c/715eb1af64779e1b1aa0a7b2ffb81414d9f708e5
- https://git.kernel.org/stable/c/875d742cf5327c93cba1f11e12b08d3cce7a88d2
- https://git.kernel.org/stable/c/88a3e6afaf002250220793df99404977d343db14
- https://git.kernel.org/stable/c/ab90894f33c15b14c1cee6959ab6c8dcb09127f8
- https://git.kernel.org/stable/c/e4fde33107351ec33f1a64188612fbc6ca659284
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html