| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-47672: wifi: iwlwifi: mvm: don't wait for tx queues if firmware is dead |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: iwlwifi: mvm: don't wait for tx queues if firmware is dead |
| |
| There is a WARNING in iwl_trans_wait_tx_queues_empty() (that was |
| recently converted from just a message), that can be hit if we |
| wait for TX queues to become empty after firmware died. Clearly, |
| we can't expect anything from the firmware after it's declared dead. |
| |
| Don't call iwl_trans_wait_tx_queues_empty() in this case. While it could |
| be a good idea to stop the flow earlier, the flush functions do some |
| maintenance work that is not related to the firmware, so keep that part |
| of the code running even when the firmware is not running. |
| |
| [edit commit message] |
| |
| The Linux kernel CVE team has assigned CVE-2024-47672 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.323 with commit ad2fcc2daa203a6ad491f00e9ae3b7867e8fe0f3 |
| Fixed in 5.4.285 with commit 16c1e5d5228f26f120e12e6ca55c59c3a5e6dece |
| Fixed in 5.10.227 with commit de46b1d24f5f752b3bd8b46673c2ea4239661244 |
| Fixed in 5.15.168 with commit 1afed66cb271b3e65fe9df1c9fba2bf4b1f55669 |
| Fixed in 6.1.112 with commit 1b0cd832c9607f41f84053b818e0b7908510a3b9 |
| Fixed in 6.6.53 with commit 4d0a900ec470d392476c428875dbf053f8a0ae5e |
| Fixed in 6.10.12 with commit 7188b7a72320367554b76d8f298417b070b05dd3 |
| Fixed in 6.11 with commit 3a84454f5204718ca5b4ad2c1f0bf2031e2403d1 |
| |
| 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-2024-47672 |
| 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/intel/iwlwifi/mvm/mac80211.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/ad2fcc2daa203a6ad491f00e9ae3b7867e8fe0f3 |
| https://git.kernel.org/stable/c/16c1e5d5228f26f120e12e6ca55c59c3a5e6dece |
| https://git.kernel.org/stable/c/de46b1d24f5f752b3bd8b46673c2ea4239661244 |
| https://git.kernel.org/stable/c/1afed66cb271b3e65fe9df1c9fba2bf4b1f55669 |
| https://git.kernel.org/stable/c/1b0cd832c9607f41f84053b818e0b7908510a3b9 |
| https://git.kernel.org/stable/c/4d0a900ec470d392476c428875dbf053f8a0ae5e |
| https://git.kernel.org/stable/c/7188b7a72320367554b76d8f298417b070b05dd3 |
| https://git.kernel.org/stable/c/3a84454f5204718ca5b4ad2c1f0bf2031e2403d1 |
