{"id":"CVE-2024-56609","title":"wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb","summary":"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\nDrive…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 4e8ce3978d704cb28678355d294e10a008b6230a","Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68","Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 9bca6528f20325d30c22236b23116f161d418f6d","Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 3e5e4a801aaf4283390cc34959c6c48f910ca5ea","Linux 5.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:29:17.448515Z"},"published":"2024-12-27","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:25.055Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-56609","references":[{"url":"https://git.kernel.org/stable/c/4e8ce3978d704cb28678355d294e10a008b6230a"},{"url":"https://git.kernel.org/stable/c/3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68"},{"url":"https://git.kernel.org/stable/c/9bca6528f20325d30c22236b23116f161d418f6d"},{"url":"https://git.kernel.org/stable/c/3e5e4a801aaf4283390cc34959c6c48f910ca5ea"}],"tags":["cve.org"],"epss":0.00227,"epssPercentile":0.13468,"ingestedAt":"2026-11-05T22:38:31.834Z","slug":"CVE-2024-56609","body":"## Overview\n\nIn 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 ]---\n\n## Affected\n\n- `Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 4e8ce3978d704cb28678355d294e10a008b6230a`\n- `Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68`\n- `Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 9bca6528f20325d30c22236b23116f161d418f6d`\n- `Linux >= e3037485c68ec1a299ff41160d8fedbd4abc29b9 < 3e5e4a801aaf4283390cc34959c6c48f910ca5ea`\n- `Linux 5.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}