SB2026091824 - Integer overflow in Linux kernel sched
Published: September 18, 2026
Security Bulletin ID
SB2026091824
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) Integer overflow (CVE-ID: CVE-2026-93182)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an integer overflow in update_tg_cfs_runnable() in the fair scheduler when processing scheduler runnable-load updates. A local user can run a hackbench workload to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/18fdd0978ec3dda0ff6865cd273e47e022180710
- https://git.kernel.org/stable/c/39d707097a0820c6e87eff4195f0940e8ff1147e
- https://git.kernel.org/stable/c/4f166adb5cb0525d9e32d45729fd8f28c80acbee
- https://git.kernel.org/stable/c/69fafae4eb2c9fc9bcff1bcbfcccf5d197434d75
- https://git.kernel.org/stable/c/7cc237e3bc1733928313d2462b413ae441b0eef3
- https://git.kernel.org/stable/c/f94e62d21faad5e244d0874598a4d0ebbc0ea405