SB20260816305 - Memory leak in Linux kernel nvdimm driver
Published: August 16, 2026
Security Bulletin ID
SB20260816305
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2026-72223)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a memory leak in discover_arenas() in the nvdimm btt subsystem when handling arena discovery failures. A local user can trigger an arena discovery failure to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249
- https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea
- https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28
- https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5
- https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545
- https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4
- https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9
- https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671