{"apiVersion":"1.0","identifier":"CVE-2026-72426","description":"In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer spill metadata during half-slot cleanup __clean_func_state() cleans dead stack slots in 4-byte halves. When the high half of a STACK_SPILL slot is dead and the low half remains live, cleanup converts the live low half to STACK_MISC or STACK_ZERO and clears the saved spilled_ptr metadata. That conversion is safe only for scalar spills. For a pointer spill, this metadata clear lets a later 32-bit fill from the still-live half avoid the normal non-scalar register-fill check and be treated as an ordinary scalar stack read. Leave non-scalar spill slots intact in this half-live shape. This is conservative for pruning and preserves the existing check_stack_read_fixed_off() rejection path for partial fills from pointer spills.","publishedAt":"2026-08-15T06:22:16","lastModifiedAt":"2026-08-17T06:19:09","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72426","cvssScore":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.0018,"riskScore":0.85,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72426","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72426","en":"https://www.redsauce.net/en/cves/CVE-2026-72426","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72426","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72426","de":"https://www.redsauce.net/de/cves/CVE-2026-72426","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72426","el":"https://www.redsauce.net/el/cves/CVE-2026-72426"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72426"}}