{"apiVersion":"1.0","identifier":"CVE-2026-74608","description":"In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifs_try_adding_channels() cifs_try_adding_channels() takes a temporary reference to an interface before dropping iface_lock. If cifs_ses_add_channel() fails, it drops that reference and then increments iface->weight_fulfilled. A concurrent interface list refresh can remove the list reference while channel creation is in progress. In that case, the failure-path kref_put() releases the last reference and frees iface. Updating weight_fulfilled afterward then accesses freed memory. Increment weight_fulfilled before dropping the temporary reference, keeping iface alive for the final access.","publishedAt":"2026-08-22T16:16:33","lastModifiedAt":"2026-08-25T06:18:37","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74608","cvssScore":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00477,"riskScore":1.02,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74608","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74608","en":"https://www.redsauce.net/en/cves/CVE-2026-74608","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74608","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74608","de":"https://www.redsauce.net/de/cves/CVE-2026-74608","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74608","el":"https://www.redsauce.net/el/cves/CVE-2026-74608"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74608"}}