{"id":"CVE-2026-98329","state":"PUBLISHED","title":"wifi: mac80211: don't allow injecting frames wider than the chanctx","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don't allow injecting frames wider than the chanctx\n\nFrames injected on a monitor interface can carry a radiotap\nfield requesting a bandwidth, which mac80211 passes down to\nthe driver regardless of the the actual operational bandwidth.\n\nIf the bandwidth requested is too wide, that triggers a warning\nin hwsim:\n\n  WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw))\n\nDrop such frames entirely instead since they cannot be sent.","publishedAt":"2026-10-06T08:46:21.887Z","updatedAt":"2026-10-19T09:17:39.579Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"a5c715eda066cba5ce3372759188ba8636dca629","versionType":"git"},{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"73f48f7e16cadfc74f444ccd10c1d3ae253e2e27","versionType":"git"},{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"c69718519a81e87284494d0c6e6eb7bdd834707a","versionType":"git"},{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"e14bf37bb2b3853012ff160131d1c6233f7a9cc9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/mac80211.h","net/mac80211/iface.c","net/mac80211/tx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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":["include/net/mac80211.h","net/mac80211/iface.c","net/mac80211/tx.c"]}],"references":["https://git.kernel.org/stable/c/a5c715eda066cba5ce3372759188ba8636dca629","https://git.kernel.org/stable/c/73f48f7e16cadfc74f444ccd10c1d3ae253e2e27","https://git.kernel.org/stable/c/c69718519a81e87284494d0c6e6eb7bdd834707a","https://git.kernel.org/stable/c/e14bf37bb2b3853012ff160131d1c6233f7a9cc9"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98329.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98329","state":"PUBLISHED","datePublished":"2026-10-06T08:46:21.887Z","dateUpdated":"2026-10-19T09:17:39.579Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.341Z"},"containers":{"cna":{"title":"wifi: mac80211: don't allow injecting frames wider than the chanctx","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don't allow injecting frames wider than the chanctx\n\nFrames injected on a monitor interface can carry a radiotap\nfield requesting a bandwidth, which mac80211 passes down to\nthe driver regardless of the the actual operational bandwidth.\n\nIf the bandwidth requested is too wide, that triggers a warning\nin hwsim:\n\n  WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw))\n\nDrop such frames entirely instead since they cannot be sent."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"a5c715eda066cba5ce3372759188ba8636dca629","versionType":"git"},{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"73f48f7e16cadfc74f444ccd10c1d3ae253e2e27","versionType":"git"},{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"c69718519a81e87284494d0c6e6eb7bdd834707a","versionType":"git"},{"version":"646e76bb5daf4ca38438c69ffb72cccb605f3466","status":"affected","lessThan":"e14bf37bb2b3853012ff160131d1c6233f7a9cc9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/mac80211.h","net/mac80211/iface.c","net/mac80211/tx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.7","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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":["include/net/mac80211.h","net/mac80211/iface.c","net/mac80211/tx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a5c715eda066cba5ce3372759188ba8636dca629"},{"url":"https://git.kernel.org/stable/c/73f48f7e16cadfc74f444ccd10c1d3ae253e2e27"},{"url":"https://git.kernel.org/stable/c/c69718519a81e87284494d0c6e6eb7bdd834707a"},{"url":"https://git.kernel.org/stable/c/e14bf37bb2b3853012ff160131d1c6233f7a9cc9"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:17:39.579Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}