SB2026091860 - Memory leak in Linux kernel nvme target driver
Published: September 18, 2026
Security Bulletin ID
SB2026091860
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-2026-93151)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 6.9 [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]
The vulnerability allows a remote attacker to cause a memory leak.
The vulnerability exists due to failure to release response resources in the nvmet-rdma queue teardown routine when an RDMA connection is forcefully disconnected while I/O operations are in flight. A remote attacker can disconnect an RDMA connection while I/O operations are in flight to cause a memory leak.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0114dd303b373522dea06053aabae34bdd33a7c4
- https://git.kernel.org/stable/c/156ec10a8be2c33b0c279d8b2f4fe8e16fa89ef7
- https://git.kernel.org/stable/c/5cc3b21729d45b5af8f79891f9dedb7e6b6dbd08
- https://git.kernel.org/stable/c/91cfa74f1f3772e8c3662c064a45d8633e00c78e
- https://git.kernel.org/stable/c/9584b3c30e4ee8ca315bdc12249cc6c47cf1a482
- https://git.kernel.org/stable/c/ca795fc1d8a1a4ab0e6bd1d27c9adb78d4ed1a1c
- https://git.kernel.org/stable/c/d553a9dc1c45666e76d8d2ac9a4f8ff0cbf53a50