{"id":"CVE-2026-23084","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list\n\nWhen the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is\nset to false, the driver ma…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list\n\nWhen the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is\nset to false, the driver ma…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.12, < 5.10.249","linux_kernel >= 5.11, < 5.15.199","linux_kernel >= 5.16, < 6.1.162","linux_kernel >= 6.2, < 6.6.122","linux_kernel >= 6.7, < 6.12.68","linux_kernel >= 6.13, < 6.18.8","linux_kernel = 6.19"],"patched":["linux_kernel 6.18.8"],"published":"2026-02-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:41.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23084","references":[{"url":"https://git.kernel.org/stable/c/31410a01a86bcb98c798d01061abf1f789c4f75a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/47ffb4dcffe336f4a7bd0f3284be7aadc6484698","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4cba480c9b9a3861a515262225cb53a1f5978344","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6c3e00888dbec887125a08b51a705b9b163fcdd1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8215794403d264739cc676668087512950b2ff31","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/92c6dc181a18e6e0ddb872ed35cb48a9274829e4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e206fb415db36bad52bb90c08d46ce71ffbe8a80","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00147,"epssPercentile":0.03897,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-10T20:41:28.786911Z"},"ingestedAt":"2026-09-08T15:33:26.994Z","slug":"CVE-2026-23084","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix NULL pointer dereference in be_cmd_get_mac_from_list\n\nWhen the parameter pmac_id_valid argument of be_cmd_get_mac_from_list() is\nset to false, the driver may request the PMAC_ID from the firmware of the\nnetwork card, and this function will store that PMAC_ID at the provided\naddress pmac_id. This is the contract of this function.\n\nHowever, there is a location within the driver where both\npmac_id_valid == false and pmac_id == NULL are being passed. This could\nresult in dereferencing a NULL pointer.\n\nTo resolve this issue, it is necessary to pass the address of a stub\nvariable to the function.\n\n## Affected\n\n- `linux_kernel >= 3.12, < 5.10.249`\n- `linux_kernel >= 5.11, < 5.15.199`\n- `linux_kernel >= 5.16, < 6.1.162`\n- `linux_kernel >= 6.2, < 6.6.122`\n- `linux_kernel >= 6.7, < 6.12.68`\n- `linux_kernel >= 6.13, < 6.18.8`\n- `linux_kernel = 6.19`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.18.8`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221619,"id":"CVE-2026-23084","ts":1792035291653,"field":"cvss","old":null,"new":"5.5"},{"seq":221618,"id":"CVE-2026-23084","ts":1792035291653,"field":"severity","old":"none","new":"medium"}]}