{"id":"CVE-2026-92497","state":"PUBLISHED","title":"wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()\n\nCurrently, in ath12k_wmi_op_rx(), the firmware buffer is read without\nfirst verifying that the buffer has enough data to hold a header. This\ncould result in a buffer overread.\n\nUpdate the logic to verify the buffer contains at least enough data to\nhold a wmi_cmd_hdr before reading from the buffer.\n\nTested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c7-00108-QCAHMTSWPL_V1.0_V2.0_SILICONZ_UPSTREAM-3","publishedAt":"2026-09-17T16:10:12.081Z","updatedAt":"2026-10-19T09:04:03.429Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"9784faa6afd26693287e8e4569bdedee00212909","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"07659388110de004cbb753f3c7bc85e657e51f7a","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"95d1bd1db9e9d8eccffc880166e01c4775115716","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"9e6ec0977f0b9c16fc20efea050e3eea8f66e34b","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"7698656a2f7b045af5a6859766238cefea1b1945","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/wmi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/wmi.c"]}],"references":["https://git.kernel.org/stable/c/9784faa6afd26693287e8e4569bdedee00212909","https://git.kernel.org/stable/c/07659388110de004cbb753f3c7bc85e657e51f7a","https://git.kernel.org/stable/c/95d1bd1db9e9d8eccffc880166e01c4775115716","https://git.kernel.org/stable/c/9e6ec0977f0b9c16fc20efea050e3eea8f66e34b","https://git.kernel.org/stable/c/7698656a2f7b045af5a6859766238cefea1b1945"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92497.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92497","state":"PUBLISHED","datePublished":"2026-09-17T16:10:12.081Z","dateUpdated":"2026-10-19T09:04:03.429Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-16T12:21:13.871Z"},"containers":{"cna":{"title":"wifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Avoid buffer overread in ath12k_wmi_op_rx()\n\nCurrently, in ath12k_wmi_op_rx(), the firmware buffer is read without\nfirst verifying that the buffer has enough data to hold a header. This\ncould result in a buffer overread.\n\nUpdate the logic to verify the buffer contains at least enough data to\nhold a wmi_cmd_hdr before reading from the buffer.\n\nTested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c7-00108-QCAHMTSWPL_V1.0_V2.0_SILICONZ_UPSTREAM-3"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"9784faa6afd26693287e8e4569bdedee00212909","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"07659388110de004cbb753f3c7bc85e657e51f7a","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"95d1bd1db9e9d8eccffc880166e01c4775115716","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"9e6ec0977f0b9c16fc20efea050e3eea8f66e34b","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","status":"affected","lessThan":"7698656a2f7b045af5a6859766238cefea1b1945","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/wmi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/wmi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9784faa6afd26693287e8e4569bdedee00212909"},{"url":"https://git.kernel.org/stable/c/07659388110de004cbb753f3c7bc85e657e51f7a"},{"url":"https://git.kernel.org/stable/c/95d1bd1db9e9d8eccffc880166e01c4775115716"},{"url":"https://git.kernel.org/stable/c/9e6ec0977f0b9c16fc20efea050e3eea8f66e34b"},{"url":"https://git.kernel.org/stable/c/7698656a2f7b045af5a6859766238cefea1b1945"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:04:03.429Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}