SB2026101596 - Deadlock in Linux kernel rdma
Published: October 15, 2026
Security Bulletin ID
SB2026101596
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) Deadlock (CVE-ID: CVE-2026-98431)
CWE-ID: CWE-833 - Deadlock
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/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 through a deadlock.
The vulnerability exists due to inconsistent lock acquisition ordering in the Linux kernel RDMA/uverbs subsystem when memory mapping or process creation occurs concurrently with mapping disassociation. A local user can exercise memory mapping or process creation paths during mapping disassociation to cause a denial of service through a deadlock.
Remediation
Install update from vendor's website.