{"id":"AZL-103733","summary":"CVE-2026-97516 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: Add NULL check for chip-\u003eedcca_th in rtw_fw_adaptivity_result()\n\nIt was recently reported that rtw_fw_adaptivity_result()\nin fw.c dereferences rtwdev-\u003echip-\u003eedcca_th without\na NULL check. The issue is that devices with the\n8821CE chip don't define edcca_th in their chip\ninfo. As a result, when rtw_fw_adaptivity_result()\ntries to dereference it, the kernel triggers an oops.\n\nAdd a NULL check for edcca_th before dereferencing\nit in rtw_fw_adaptivity_result() in fw.c. Placing\nthe check at the function entry avoids logging any\ngarbage values.\n\nThis change does not address the root cause for\nthis behavior, but it prevents the NULL dereference\nand the resulting oops while a more permanent solution\nis developed.\n\nTested on a 8822CE chip which defines edcca_th, so\nthis issue is not present on it, but it still uses\nthis driver and I can verify there are no regressions.","modified":"2026-09-26T05:34:12Z","published":"2026-09-24T17:17:29Z","upstream":["CVE-2026-97516"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97516"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103733.json"}}],"schema_version":"1.9.0"}