| 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-2024-53191: wifi: ath12k: fix warning when unbinding |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: ath12k: fix warning when unbinding |
| |
| If there is an error during some initialization related to firmware, |
| the buffers dp->tx_ring[i].tx_status are released. |
| However this is released again when the device is unbinded (ath12k_pci), |
| and we get: |
| WARNING: CPU: 0 PID: 2098 at mm/slub.c:4689 free_large_kmalloc+0x4d/0x80 |
| Call Trace: |
| free_large_kmalloc |
| ath12k_dp_free |
| ath12k_core_deinit |
| ath12k_pci_remove |
| ... |
| |
| The issue is always reproducible from a VM because the MSI addressing |
| initialization is failing. |
| |
| In order to fix the issue, just set the buffers to NULL after releasing in |
| order to avoid the double free. |
| |
| The Linux kernel CVE team has assigned CVE-2024-53191 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.3 with commit d889913205cf7ebda905b1e62c5867ed4e39f6c2 and fixed in 6.6.64 with commit 223b546c6222d42147eff034433002ca5e2e7e09 |
| Issue introduced in 6.3 with commit d889913205cf7ebda905b1e62c5867ed4e39f6c2 and fixed in 6.11.11 with commit 90556b96338aa6037cd26dac857327fda7c19732 |
| Issue introduced in 6.3 with commit d889913205cf7ebda905b1e62c5867ed4e39f6c2 and fixed in 6.12.2 with commit 94c9100b600f05a36b33f9ed76dbd6fb0eb25386 |
| Issue introduced in 6.3 with commit d889913205cf7ebda905b1e62c5867ed4e39f6c2 and fixed in 6.13 with commit ca68ce0d9f4bcd032fd1334441175ae399642a06 |
| |
| 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-2024-53191 |
| 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/ath/ath12k/dp.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/223b546c6222d42147eff034433002ca5e2e7e09 |
| https://git.kernel.org/stable/c/90556b96338aa6037cd26dac857327fda7c19732 |
| https://git.kernel.org/stable/c/94c9100b600f05a36b33f9ed76dbd6fb0eb25386 |
| https://git.kernel.org/stable/c/ca68ce0d9f4bcd032fd1334441175ae399642a06 |
