{"id":"DEBIAN-CVE-2024-49937","details":"In the Linux kernel, the following vulnerability has been resolved:  wifi: cfg80211: Set correct chandef when starting CAC  When starting CAC in a mode other than AP mode, it return a \"WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\" caused by the chandef.chan being null at the end of CAC.  Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC.   Call Trace:   ? show_regs.part.0+0x14/0x16   ? __warn+0x67/0xc0   ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]   ? report_bug+0xa7/0x130   ? exc_overflow+0x30/0x30   ? handle_bug+0x27/0x50   ? exc_invalid_op+0x18/0x60   ? handle_exception+0xf6/0xf6   ? exc_overflow+0x30/0x30   ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]   ? exc_overflow+0x30/0x30   ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]   ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211]   ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211]   ? process_one_work+0x165/0x280   ? worker_thread+0x120/0x3f0   ? kthread+0xc2/0xf0   ? process_one_work+0x280/0x280   ? kthread_complete_and_exit+0x20/0x20   ? ret_from_fork+0x19/0x24  [shorten subject, remove OCB, reorder cases to match previous list]","modified":"2026-09-15T09:02:59.004972598Z","published":"2024-10-21T18:15:15.477Z","upstream":["CVE-2024-49937"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-49937"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.115-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-49937.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.11.4-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-49937.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.11.4-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-49937.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}