{"id":"CVE-2024-56609","summary":"wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb\n\nWhen removing kernel modules by:\n   rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core\n\nDriver uses skb_queue_purge() to purge TX skb, but not report tx status\ncausing \"Have pending ack frames!\" warning. Use ieee80211_purge_tx_queue()\nto correct this.\n\nSince ieee80211_purge_tx_queue() doesn't take locks, to prevent racing\nbetween TX work and purge TX queue, flush and destroy TX work in advance.\n\n   wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local\n     choice (Reason: 3=DEAUTH_LEAVING)\n   ------------[ cut here ]------------\n   Have pending ack frames!\n   WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691\n       ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   CPU: 3 PID: 9232 Comm: rmmod Tainted: G         C\n       6.10.1-200.fc40.aarch64 #1\n   Hardware name: pine64 Pine64 PinePhone Braveheart\n      (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024\n   pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n   pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   sp : ffff80008c1b37b0\n   x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000\n   x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0\n   x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff\n   x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000\n   x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000\n   x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964\n   x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0\n   x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001\n   x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n   x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000\n   Call trace:\n    ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n    idr_for_each+0x74/0x110\n    ieee80211_free_hw+0x44/0xe8 [mac80211]\n    rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio]\n    sdio_bus_remove+0x44/0x180\n    device_remove+0x54/0x90\n    device_release_driver_internal+0x1d4/0x238\n    driver_detach+0x54/0xc0\n    bus_remove_driver+0x78/0x108\n    driver_unregister+0x38/0x78\n    sdio_unregister_driver+0x2c/0x40\n    rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs]\n    __do_sys_delete_module.isra.0+0x190/0x338\n    __arm64_sys_delete_module+0x1c/0x30\n    invoke_syscall+0x74/0x100\n    el0_svc_common.constprop.0+0x48/0xf0\n    do_el0_svc+0x24/0x38\n    el0_svc+0x3c/0x158\n    el0t_64_sync_handler+0x120/0x138\n    el0t_64_sync+0x194/0x198\n   ---[ end trace 0000000000000000 ]---","modified":"2026-03-20T12:39:54.246854Z","published":"2024-12-27T14:51:14.155Z","related":["SUSE-SU-2025:0289-1","SUSE-SU-2025:0428-1","SUSE-SU-2025:0499-1","SUSE-SU-2025:0557-1","SUSE-SU-2025:20165-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20248-1","SUSE-SU-2025:20249-1","USN-7379-2","USN-7380-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56609.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3e5e4a801aaf4283390cc34959c6c48f910ca5ea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4e8ce3978d704cb28678355d294e10a008b6230a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9bca6528f20325d30c22236b23116f161d418f6d"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56609.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56609"},{"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":"4e8ce3978d704cb28678355d294e10a008b6230a"},{"fixed":"3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68"},{"fixed":"9bca6528f20325d30c22236b23116f161d418f6d"},{"fixed":"3e5e4a801aaf4283390cc34959c6c48f910ca5ea"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-56609.json"}}],"schema_version":"1.7.5"}