# CVE-2026-46067: linux: In the Linux kernel, the following vulnerability has been resolved:  mm/damon/core: validate damos_quota_goal->nid fo...

CVE-2026-46067 is fixed in linux on 1 platform by DEBIAN-CVE-2026-46067 (version 7.0.4-1), released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-46067
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 27, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  mm/damon/core: validate damos_quota_goal->nid for node_memcg_{used,free}_bp  Users can set damos_quota_goal->nid with arbitrary value for node_memcg_{used,free}_bp.  But DAMON core is using those for NODE-DATA() without a validation of the value.  This can result in out of bounds memory access.  The issue can actually triggered using DAMON user-space tool (damo), like below.      $ sudo mkdir /sys/fs/cgroup/foo     $ sudo ./damo start --damos_action stat --damos_quota_interval 1s \             --damos_quota_goal node_memcg_used_bp 50% -1 /foo     $ sudo dmseg     [...]     [  524.181426] Unable to handle kernel paging request at virtual address 0000000000002c00  Fix this issue by adding the validation of the given node id.  If an invalid node id is given, it returns 0% for used memory ratio, and 100% for free memory ratio.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.0.4-1 | [DEBIAN-CVE-2026-46067](https://patchblox.com/security/data/fix/linux/debian-cve-2026-46067.md) | May 27, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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