{"id":"CVE-2026-93112","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Require a BPF cpumask for bpf_cpumask_populate()\n\nbpf_cpumask_populate() writes to its destination with bitmap_copy(), but\nthe destination is typed as struct cpuma…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Require a BPF cpumask for bpf_cpumask_populate()\n\nbpf_cpumask_populate() writes to its destination with bitmap_copy(), but\nthe destination is typed as struct cpuma…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 950ad93df2fce70445e655ed2e74f5c1a8653ab2 < 0cfc9348a045da64955af2dd6902e66dfc7d6469","Linux >= 950ad93df2fce70445e655ed2e74f5c1a8653ab2 < b7e2a5c6519adc73be55c3de2cb545e095a0fbc5","Linux >= 950ad93df2fce70445e655ed2e74f5c1a8653ab2 < 8740156ad33be5071b588b594c55f279457f667c","Linux 6.15"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:18:21.150","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93112","references":[{"url":"https://git.kernel.org/stable/c/0cfc9348a045da64955af2dd6902e66dfc7d6469","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8740156ad33be5071b588b594c55f279457f667c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b7e2a5c6519adc73be55c3de2cb545e095a0fbc5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93112.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93112"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536770"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93112"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93112"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93112.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00169,"epssPercentile":0.06237,"ingestedAt":"2026-09-17T16:21:47.753Z","cwe":["CWE-843"],"scores":{"nvd":7.1,"vendor":6.4,"cna":7.1},"slug":"CVE-2026-93112","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Require a BPF cpumask for bpf_cpumask_populate()\n\nbpf_cpumask_populate() writes to its destination with bitmap_copy(), but\nthe destination is typed as struct cpumask *. That allows the verifier to\naccept borrowed cpumask pointers returned by read-only kfuncs, such as\nscx_bpf_get_online_cpumask(), as a writable destination.\n\nMake the destination a struct bpf_cpumask * so populate follows the same\nownership rule as the other mutating cpumask kfuncs. Query kfuncs continue\nto accept const struct cpumask * inputs.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93112.json)","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207377,"id":"CVE-2026-93112","ts":1789757341815,"field":"cvss","old":null,"new":"7.1"},{"seq":207376,"id":"CVE-2026-93112","ts":1789757341815,"field":"severity","old":"none","new":"high"}]}