{"id":"CVE-2024-46760","state":"PUBLISHED","title":"wifi: rtw88: usb: schedule rx work after everything is set up","description":"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->conf.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.","publishedAt":"2024-09-18T07:12:19.995Z","updatedAt":"2026-05-11T20:35:49.307Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e3037485c68ec1a299ff41160d8fedbd4abc29b9","status":"affected","lessThan":"c83d464b82a8ad62ec9077637f75d73fe955635a","versionType":"git"},{"version":"e3037485c68ec1a299ff41160d8fedbd4abc29b9","status":"affected","lessThan":"25eaef533bf3ccc6fee5067aac16f41f280e343e","versionType":"git"},{"version":"e3037485c68ec1a299ff41160d8fedbd4abc29b9","status":"affected","lessThan":"adc539784c98a7cc602cbf557debfc2e7b9be8b3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw88/usb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"6.6.51","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.10","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw88/usb.c"]}],"references":["https://git.kernel.org/stable/c/c83d464b82a8ad62ec9077637f75d73fe955635a","https://git.kernel.org/stable/c/25eaef533bf3ccc6fee5067aac16f41f280e343e","https://git.kernel.org/stable/c/adc539784c98a7cc602cbf557debfc2e7b9be8b3"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:47.831Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/46xxx/CVE-2024-46760.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-46760","state":"PUBLISHED","datePublished":"2024-09-18T07:12:19.995Z","dateUpdated":"2026-05-11T20:35:49.307Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-09-11T15:12:18.271Z"},"containers":{"cna":{"title":"wifi: rtw88: usb: schedule rx work after everything is set up","descriptions":[{"lang":"en","value":"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->conf.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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e3037485c68ec1a299ff41160d8fedbd4abc29b9","status":"affected","lessThan":"c83d464b82a8ad62ec9077637f75d73fe955635a","versionType":"git"},{"version":"e3037485c68ec1a299ff41160d8fedbd4abc29b9","status":"affected","lessThan":"25eaef533bf3ccc6fee5067aac16f41f280e343e","versionType":"git"},{"version":"e3037485c68ec1a299ff41160d8fedbd4abc29b9","status":"affected","lessThan":"adc539784c98a7cc602cbf557debfc2e7b9be8b3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw88/usb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"6.6.51","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.10","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw88/usb.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c83d464b82a8ad62ec9077637f75d73fe955635a"},{"url":"https://git.kernel.org/stable/c/25eaef533bf3ccc6fee5067aac16f41f280e343e"},{"url":"https://git.kernel.org/stable/c/adc539784c98a7cc602cbf557debfc2e7b9be8b3"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:35:49.307Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.6.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.10.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.11"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-29T14:44:05.303154Z","id":"CVE-2024-46760","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-29T14:44:20.132Z"}}]}}}