High 7.8Published Feb 26, 2025

CVE-2025-21785arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array

Updated under an hour ago (Oct 26, 2026, 6:30 PM ET)

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Exploited in the last 30 days

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).

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 5d425c18653731af62831d30a4fa023d532657a9 before 4371ac7b494e933fffee2bd6265d18d73c4f05aa; from 5d425c18653731af62831d30a4fa023d532657a9 before e4fde33107351ec33f1a64188612fbc6ca659284; from 5d425c18653731af62831d30a4fa023d532657a9 before 88a3e6afaf002250220793df99404977d343db14; 5d425c18653731af62831d30a4fa023d532657a9 builds before 4ff25f0b18d1d0174c105e4620428bcdc1213860; from 5d425c18653731af62831d30a4fa023d532657a9 before ab90894f33c15b14c1cee6959ab6c8dcb09127f8; from 5d425c18653731af62831d30a4fa023d532657a9 before 715eb1af64779e1b1aa0a7b2ffb81414d9f708e5; from 5d425c18653731af62831d30a4fa023d532657a9 before 67b99a2b5811df4294c2ad50f9bff3b6a08bd618; from 5d425c18653731af62831d30a4fa023d532657a9 before 875d742cf5327c93cba1f11e12b08d3cce7a88d2	CNA record
linux linux_kernel linux:linux_kernel	from 4.0 before 6.1.129; from 6.2 before 6.6.79; from 6.7 before 6.12.16; from 6.13 before 6.13.4; 6.14; 6.14	NVD

References

References

https://git.kernel.org/stable/c/4371ac7b494e933fffee2bd6265d18d73c4f05aa
https://git.kernel.org/stable/c/e4fde33107351ec33f1a64188612fbc6ca659284
https://git.kernel.org/stable/c/88a3e6afaf002250220793df99404977d343db14
https://git.kernel.org/stable/c/4ff25f0b18d1d0174c105e4620428bcdc1213860	mailing-list, patch
https://git.kernel.org/stable/c/ab90894f33c15b14c1cee6959ab6c8dcb09127f8	mailing-list, patch
https://git.kernel.org/stable/c/715eb1af64779e1b1aa0a7b2ffb81414d9f708e5	mailing-list, patch
https://git.kernel.org/stable/c/67b99a2b5811df4294c2ad50f9bff3b6a08bd618	mailing-list, patch
https://git.kernel.org/stable/c/875d742cf5327c93cba1f11e12b08d3cce7a88d2	mailing-list, patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.