{"apiVersion":"1.0","identifier":"CVE-2026-68447","description":"In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size CRIU checkpoint copies the MQD control stack using cp_hqd_cntl_stack_size from hardware without bounding it to the allocated BO region. If the HW field is larger than the queue-s control stack allocation, memcpy reads past the BO into adjacent GTT memory and can leak kernel data to userspace. Store the page-aligned control stack BO size in mqd_manager and clamp checkpoint copies and reported checkpoint sizes to min(cp_hqd_cntl_stack_size, mm->ctl_stack_size). Apply the same bound for multi-XCC v9.4.3 checkpoint layout. (cherry picked from commit 6c2abd0ec09e86c6323010673766f76050e28aa3)","publishedAt":"2026-08-12T01:17:07","lastModifiedAt":"2026-08-18T07:16:52","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68447","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","epssProbability":0.0011,"riskScore":0.72,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-68447","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-68447","en":"https://www.redsauce.net/en/cves/CVE-2026-68447","fr":"https://www.redsauce.net/fr/cves/CVE-2026-68447","pt":"https://www.redsauce.net/pt/cves/CVE-2026-68447","de":"https://www.redsauce.net/de/cves/CVE-2026-68447","sk":"https://www.redsauce.net/sk/cves/CVE-2026-68447","el":"https://www.redsauce.net/el/cves/CVE-2026-68447"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-68447"}}