{"apiVersion":"1.0","identifier":"CVE-2026-72013","description":"In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent NULL pointer dereference in machine_kexec_prepare() A NULL pointer dereference issue is noticed in riscv-s machine_kexec_prepare(), where image->segment[i].buf might be NULL and copied unchecked. The NULL buf comes from ima_add_kexec_buffer(), where kbuf is added by kexec_add_buffer(), but kbuf.buffer is NULL, then it is copied without a check in machine_kexec_prepare(): kexec_file_load -> kimage_file_alloc_init() -> kimage_file_prepare_segments() -> ima_add_kexec_buffer() -> kexec_add_buffer() -> machine_kexec_prepare() -> memcpy() Address this by adding a check before the data copy attempt.","publishedAt":"2026-08-15T06:21:00","lastModifiedAt":"2026-08-17T06:17:58","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72013","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00206,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72013","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72013","en":"https://www.redsauce.net/en/cves/CVE-2026-72013","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72013","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72013","de":"https://www.redsauce.net/de/cves/CVE-2026-72013","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72013","el":"https://www.redsauce.net/el/cves/CVE-2026-72013"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72013"}}