{"id":"CVE-2024-46760","summary":"wifi: rtw88: usb: schedule rx work after everything is set up","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: usb: schedule rx work after everything is set up\n\nRight now it's possible to hit NULL pointer dereference in\nrtw_rx_fill_rx_status on hw object and/or its fields because\ninitialization routine can start getting USB replies before\nrtw_dev is fully setup.\n\nThe stack trace looks like this:\n\nrtw_rx_fill_rx_status\nrtw8821c_query_rx_desc\nrtw_usb_rx_handler\n...\nqueue_work\nrtw_usb_read_port_complete\n...\nusb_submit_urb\nrtw_usb_rx_resubmit\nrtw_usb_init_rx\nrtw_usb_probe\n\nSo while we do the async stuff rtw_usb_probe continues and calls\nrtw_register_hw, which does all kinds of initialization (e.g.\nvia ieee80211_register_hw) that rtw_rx_fill_rx_status relies on.\n\nFix this by moving the first usb_submit_urb after everything\nis set up.\n\nFor me, this bug manifested as:\n[    8.893177] rtw_8821cu 1-1:1.2: band wrong, packet dropped\n[    8.910904] rtw_8821cu 1-1:1.2: hw-\u003econf.chandef.chan NULL in rtw_rx_fill_rx_status\nbecause I'm using Larry's backport of rtw88 driver with the NULL\nchecks in rtw_rx_fill_rx_status.","modified":"2026-04-16T04:32:20.800485793Z","published":"2024-09-18T07:12:19.995Z","related":["SUSE-SU-2024:3551-1","SUSE-SU-2024:3553-1","SUSE-SU-2024:3561-1","SUSE-SU-2024:3564-1","SUSE-SU-2025:20073-1","SUSE-SU-2025:20077-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46760.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/25eaef533bf3ccc6fee5067aac16f41f280e343e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/adc539784c98a7cc602cbf557debfc2e7b9be8b3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c83d464b82a8ad62ec9077637f75d73fe955635a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46760.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46760"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e3037485c68ec1a299ff41160d8fedbd4abc29b9"},{"fixed":"c83d464b82a8ad62ec9077637f75d73fe955635a"},{"fixed":"25eaef533bf3ccc6fee5067aac16f41f280e343e"},{"fixed":"adc539784c98a7cc602cbf557debfc2e7b9be8b3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46760.json"}}],"schema_version":"1.7.5"}