SB2026052832 - Memory leak in Linux kernel qrtr
Published: May 28, 2026
Security Bulletin ID
SB2026052832
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote 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-2026-46038)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in ctrl_cmd_bye() when processing a BYE packet from a node. A remote attacker can send a BYE packet to trigger a memory leak and cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/076e4b162d6caba12c229e7f262df5b6881162b0
- https://git.kernel.org/stable/c/154fc7fe3f62c46891c3c4302f4b5b5391c932e6
- https://git.kernel.org/stable/c/65932f5102bb5377db36c8a4f0c28179a1967a9a
- https://git.kernel.org/stable/c/68efba36446a7774ea5b971257ade049272a07ac
- https://git.kernel.org/stable/c/ff78ed177a66763085e3214d6fbe13ca8f0b3f11