{"cve":"CVE-2024-47724","nvd":{"published":"2024-10-21T13:15:02.590","modified":"2026-08-04T11:20:44.753","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: use work queue to process beacon tx event\n\nCommit 3a415daa3e8b (\"wifi: ath11k: add P2P IE in beacon template\")\nfrom Feb 28, 2024 (linux-next), leads to the following Smatch static\nchecker warning:\n\ndrivers/net/wireless/ath/ath11k/wmi.c:1742 ath11k_wmi_p2p_go_bcn_ie()\nwarn: sleeping in atomic context\n\nThe reason is that ath11k_bcn_tx_status_event() will directly call might\nsleep function ath11k_wmi_cmd_send() during RCU read-side critical\nsections. The call trace is like:\n\nath11k_bcn_tx_status_event()\n-> rcu_read_lock()\n-> ath11k_mac_bcn_tx_event()\n\t-> ath11k_mac_setup_bcn_tmpl()\n\t……\n\t\t-> ath11k_wmi_bcn_tmpl()\n\t\t\t-> ath11k_wmi_cmd_send()\n-> rcu_read_unlock()\n\nCommit 886433a98425 (\"ath11k: add support for BSS color change\") added the\nath11k_mac_bcn_tx_event(), commit 01e782c89108 (\"ath11k: fix warning\nof RCU usage for ath11k_mac_get_arvif_by_vdev_id()\") added the RCU lock\nto avoid warning but also introduced this BUG.\n\nUse work queue to avoid directly calling ath11k_mac_bcn_tx_event()\nduring RCU critical sections. No need to worry about the deletion of vif\nbecause cancel_work_sync() will drop the work if it doesn't start or\nblock vif deletion until the running work is done.\n\nTested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/177b49dbf9c1d8f9f25a22ffafa416fc2c8aa6a3","https://git.kernel.org/stable/c/6db232905e094e64abff1f18249905d068285e09","https://git.kernel.org/stable/c/dbd51da69dda1137723b8f66460bf99a9dac8dd2"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:56:33.105311382+00:00"},"epss":{"cve":"CVE-2024-47724","score":0.00338,"percentile":0.27266,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}