| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-56609: wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb |
| |
| When removing kernel modules by: |
| rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core |
| |
| Driver uses skb_queue_purge() to purge TX skb, but not report tx status |
| causing "Have pending ack frames!" warning. Use ieee80211_purge_tx_queue() |
| to correct this. |
| |
| Since ieee80211_purge_tx_queue() doesn't take locks, to prevent racing |
| between TX work and purge TX queue, flush and destroy TX work in advance. |
| |
| wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local |
| choice (Reason: 3=DEAUTH_LEAVING) |
| ------------[ cut here ]------------ |
| Have pending ack frames! |
| WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691 |
| ieee80211_free_ack_frame+0x5c/0x90 [mac80211] |
| CPU: 3 PID: 9232 Comm: rmmod Tainted: G C |
| 6.10.1-200.fc40.aarch64 #1 |
| Hardware name: pine64 Pine64 PinePhone Braveheart |
| (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024 |
| pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) |
| pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] |
| lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] |
| sp : ffff80008c1b37b0 |
| x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000 |
| x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0 |
| x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff |
| x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000 |
| x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000 |
| x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964 |
| x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0 |
| x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001 |
| x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 |
| x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000 |
| Call trace: |
| ieee80211_free_ack_frame+0x5c/0x90 [mac80211] |
| idr_for_each+0x74/0x110 |
| ieee80211_free_hw+0x44/0xe8 [mac80211] |
| rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio] |
| sdio_bus_remove+0x44/0x180 |
| device_remove+0x54/0x90 |
| device_release_driver_internal+0x1d4/0x238 |
| driver_detach+0x54/0xc0 |
| bus_remove_driver+0x78/0x108 |
| driver_unregister+0x38/0x78 |
| sdio_unregister_driver+0x2c/0x40 |
| rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs] |
| __do_sys_delete_module.isra.0+0x190/0x338 |
| __arm64_sys_delete_module+0x1c/0x30 |
| invoke_syscall+0x74/0x100 |
| el0_svc_common.constprop.0+0x48/0xf0 |
| do_el0_svc+0x24/0x38 |
| el0_svc+0x3c/0x158 |
| el0t_64_sync_handler+0x120/0x138 |
| el0t_64_sync+0x194/0x198 |
| ---[ end trace 0000000000000000 ]--- |
| |
| The Linux kernel CVE team has assigned CVE-2024-56609 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.2 with commit e3037485c68ec1a299ff41160d8fedbd4abc29b9 and fixed in 6.1.136 with commit 4e8ce3978d704cb28678355d294e10a008b6230a |
| Issue introduced in 5.2 with commit e3037485c68ec1a299ff41160d8fedbd4abc29b9 and fixed in 6.6.70 with commit 3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68 |
| Issue introduced in 5.2 with commit e3037485c68ec1a299ff41160d8fedbd4abc29b9 and fixed in 6.12.5 with commit 9bca6528f20325d30c22236b23116f161d418f6d |
| Issue introduced in 5.2 with commit e3037485c68ec1a299ff41160d8fedbd4abc29b9 and fixed in 6.13 with commit 3e5e4a801aaf4283390cc34959c6c48f910ca5ea |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-56609 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/net/wireless/realtek/rtw88/sdio.c |
| drivers/net/wireless/realtek/rtw88/usb.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/4e8ce3978d704cb28678355d294e10a008b6230a |
| https://git.kernel.org/stable/c/3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68 |
| https://git.kernel.org/stable/c/9bca6528f20325d30c22236b23116f161d418f6d |
| https://git.kernel.org/stable/c/3e5e4a801aaf4283390cc34959c6c48f910ca5ea |
