{"id":"CVE-2024-57898","state":"PUBLISHED","title":"wifi: cfg80211: clear link ID from bitmap during link delete after clean up","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: clear link ID from bitmap during link delete after clean up\n\nCurrently, during link deletion, the link ID is first removed from the\nvalid_links bitmap before performing any clean-up operations. However, some\nfunctions require the link ID to remain in the valid_links bitmap. One\nsuch example is cfg80211_cac_event(). The flow is -\n\nnl80211_remove_link()\n    cfg80211_remove_link()\n        ieee80211_del_intf_link()\n            ieee80211_vif_set_links()\n                ieee80211_vif_update_links()\n                    ieee80211_link_stop()\n                        cfg80211_cac_event()\n\ncfg80211_cac_event() requires link ID to be present but it is cleared\nalready in cfg80211_remove_link(). Ultimately, WARN_ON() is hit.\n\nTherefore, clear the link ID from the bitmap only after completing the link\nclean-up.","publishedAt":"2025-01-15T13:05:49.718Z","updatedAt":"2026-05-11T21:00:04.159Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d74380ee99b59a2e46612c12c85e701ab213f4ea","status":"affected","lessThan":"ae07daf440d3220d0986e676317a5da66e4f9dfd","versionType":"git"},{"version":"d74380ee99b59a2e46612c12c85e701ab213f4ea","status":"affected","lessThan":"b5c32ff6a3a38c74facdd1fe34c0d709a55527fd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/cfg.c","net/wireless/util.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.9","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/cfg.c","net/wireless/util.c"]}],"references":["https://git.kernel.org/stable/c/ae07daf440d3220d0986e676317a5da66e4f9dfd","https://git.kernel.org/stable/c/b5c32ff6a3a38c74facdd1fe34c0d709a55527fd"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/57xxx/CVE-2024-57898.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-57898","state":"PUBLISHED","datePublished":"2025-01-15T13:05:49.718Z","dateUpdated":"2026-05-11T21:00:04.159Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-01-11T14:45:42.029Z"},"containers":{"cna":{"title":"wifi: cfg80211: clear link ID from bitmap during link delete after clean up","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: clear link ID from bitmap during link delete after clean up\n\nCurrently, during link deletion, the link ID is first removed from the\nvalid_links bitmap before performing any clean-up operations. However, some\nfunctions require the link ID to remain in the valid_links bitmap. One\nsuch example is cfg80211_cac_event(). The flow is -\n\nnl80211_remove_link()\n    cfg80211_remove_link()\n        ieee80211_del_intf_link()\n            ieee80211_vif_set_links()\n                ieee80211_vif_update_links()\n                    ieee80211_link_stop()\n                        cfg80211_cac_event()\n\ncfg80211_cac_event() requires link ID to be present but it is cleared\nalready in cfg80211_remove_link(). Ultimately, WARN_ON() is hit.\n\nTherefore, clear the link ID from the bitmap only after completing the link\nclean-up."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d74380ee99b59a2e46612c12c85e701ab213f4ea","status":"affected","lessThan":"ae07daf440d3220d0986e676317a5da66e4f9dfd","versionType":"git"},{"version":"d74380ee99b59a2e46612c12c85e701ab213f4ea","status":"affected","lessThan":"b5c32ff6a3a38c74facdd1fe34c0d709a55527fd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/cfg.c","net/wireless/util.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.9","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mac80211/cfg.c","net/wireless/util.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ae07daf440d3220d0986e676317a5da66e4f9dfd"},{"url":"https://git.kernel.org/stable/c/b5c32ff6a3a38c74facdd1fe34c0d709a55527fd"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:00:04.159Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}