{"id":"DEBIAN-CVE-2024-47724","details":"In the Linux kernel, the following vulnerability has been resolved:  wifi: ath11k: use work queue to process beacon tx event  Commit 3a415daa3e8b (\"wifi: ath11k: add P2P IE in beacon template\") from Feb 28, 2024 (linux-next), leads to the following Smatch static checker warning:  drivers/net/wireless/ath/ath11k/wmi.c:1742 ath11k_wmi_p2p_go_bcn_ie() warn: sleeping in atomic context  The reason is that ath11k_bcn_tx_status_event() will directly call might sleep function ath11k_wmi_cmd_send() during RCU read-side critical sections. The call trace is like:  ath11k_bcn_tx_status_event() -\u003e rcu_read_lock() -\u003e ath11k_mac_bcn_tx_event() \t-\u003e ath11k_mac_setup_bcn_tmpl() \t…… \t\t-\u003e ath11k_wmi_bcn_tmpl() \t\t\t-\u003e ath11k_wmi_cmd_send() -\u003e rcu_read_unlock()  Commit 886433a98425 (\"ath11k: add support for BSS color change\") added the ath11k_mac_bcn_tx_event(), commit 01e782c89108 (\"ath11k: fix warning of RCU usage for ath11k_mac_get_arvif_by_vdev_id()\") added the RCU lock to avoid warning but also introduced this BUG.  Use work queue to avoid directly calling ath11k_mac_bcn_tx_event() during RCU critical sections. No need to worry about the deletion of vif because cancel_work_sync() will drop the work if it doesn't start or block vif deletion until the running work is done.  Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30","modified":"2026-09-15T09:02:58.454037992Z","published":"2024-10-21T13:15:02.590Z","upstream":["CVE-2024-47724"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-47724"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.11.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-47724.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.11.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-47724.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"}]}