{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46092","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.097Z","datePublished":"2026-05-27T12:58:37.088Z","dateUpdated":"2026-07-16T11:13:51.937Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-16T11:13:51.937Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: check for PCI upstream bridge existence\n\npci_upstream_bridge() returns NULL if the device is on a root bus.  If\n8821CE is installed in the system with such a PCI topology, the probing\nroutine will crash.  This has probably been unnoticed as 8821CE is mostly\nsupplied in laptops where there is a PCI-to-PCI bridge located upstream\nfrom the device.  However the card might be installed on a system with\ndifferent configuration.\n\nCheck if the bridge does exist for the specific workaround to be applied.\n\nFound by Linux Verification Center (linuxtesting.org) with Svace static\nanalysis tool."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw88/pci.c"],"versions":[{"version":"617339466fda09916c4b4151fa5e6a9c1fdae353","lessThan":"959c13da6c36167ce1016d400a6104d2367f686e","status":"affected","versionType":"git"},{"version":"24f5e38a13b5ae2b6105cda8bb47c19108e62a9a","lessThan":"3b89b4c095804c478d50376285e66700cf3c045f","status":"affected","versionType":"git"},{"version":"24f5e38a13b5ae2b6105cda8bb47c19108e62a9a","lessThan":"cc9b6303e7ea91bc360b42c7edc1fe9ceb2f47fe","status":"affected","versionType":"git"},{"version":"24f5e38a13b5ae2b6105cda8bb47c19108e62a9a","lessThan":"6c53d68e3bcfc8faccdd76c3383a9232b05c9ae6","status":"affected","versionType":"git"},{"version":"24f5e38a13b5ae2b6105cda8bb47c19108e62a9a","lessThan":"000134a20bbf89b1152520a2eef71f91fdb83a5b","status":"affected","versionType":"git"},{"version":"24f5e38a13b5ae2b6105cda8bb47c19108e62a9a","lessThan":"3bbbb56204f7359ce2139a9341b43b52a186261c","status":"affected","versionType":"git"},{"version":"24f5e38a13b5ae2b6105cda8bb47c19108e62a9a","lessThan":"eb101d2abdcccb514ca4fccd3b278dd8267374f6","status":"affected","versionType":"git"},{"version":"f21e8cb927fa9da49490b74ddda3856a828b82d6","status":"affected","versionType":"git"},{"version":"5.15.17","lessThan":"5.15.210","status":"affected","versionType":"semver"},{"version":"5.16.3","lessThan":"5.17","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw88/pci.c"],"versions":[{"version":"5.17","status":"affected"},{"version":"0","lessThan":"5.17","status":"unaffected","versionType":"semver"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.140","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.86","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.27","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.4","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.17","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.12.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.18.27"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"7.0.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/959c13da6c36167ce1016d400a6104d2367f686e"},{"url":"https://git.kernel.org/stable/c/3b89b4c095804c478d50376285e66700cf3c045f"},{"url":"https://git.kernel.org/stable/c/cc9b6303e7ea91bc360b42c7edc1fe9ceb2f47fe"},{"url":"https://git.kernel.org/stable/c/6c53d68e3bcfc8faccdd76c3383a9232b05c9ae6"},{"url":"https://git.kernel.org/stable/c/000134a20bbf89b1152520a2eef71f91fdb83a5b"},{"url":"https://git.kernel.org/stable/c/3bbbb56204f7359ce2139a9341b43b52a186261c"},{"url":"https://git.kernel.org/stable/c/eb101d2abdcccb514ca4fccd3b278dd8267374f6"}],"title":"wifi: rtw88: check for PCI upstream bridge existence","x_generator":{"engine":"bippy-1.2.0"}}}}