SB2026091708 - Infinite loop in Linux kernel parisc driver
Published: September 17, 2026
Security Bulletin ID
SB2026091708
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Infinite loop (CVE-ID: CVE-2026-89964)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to failure to advance the parsing position in eisa_irq_setup() when processing an invalid eisa_irq_edge kernel command line parameter. A local privileged user can supply an invalid comma-separated IRQ value to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/16a62a3f2128b3d86fefc082d8f631becd02bff5
- https://git.kernel.org/stable/c/21f063e3c2b11fb9078ccdfd3b23634313ce4f0c
- https://git.kernel.org/stable/c/3e2691eeee83a819125dba3f42c74e1b6730d5cd
- https://git.kernel.org/stable/c/62d88e93ef5e1e04041e347945f7d7510eba1797
- https://git.kernel.org/stable/c/68659b627770f3c8d8f578e8ddee78a07d5f1d0e
- https://git.kernel.org/stable/c/8640ade22369e248f77fbdd31a9d71b338499eef
- https://git.kernel.org/stable/c/8b585431a16cfb9d8f2955a9fa0787ce3dceb3c2
- https://git.kernel.org/stable/c/bb10d54b74845eb4547baa1b9e908ecd32aa64e1