| 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-2024-26694: wifi: iwlwifi: fix double-free bug |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: iwlwifi: fix double-free bug |
| |
| The storage for the TLV PC register data wasn't done like all |
| the other storage in the drv->fw area, which is cleared at the |
| end of deallocation. Therefore, the freeing must also be done |
| differently, explicitly NULL'ing it out after the free, since |
| otherwise there's a nasty double-free bug here if a file fails |
| to load after this has been parsed, and we get another free |
| later (e.g. because no other file exists.) Fix that by adding |
| the missing NULL assignment. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26694 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.4 with commit 5e31b3df86ec6fbb925eee77fe2c450099c61dff and fixed in 6.6.18 with commit ab9d4bb9a1892439b3123fc52b19e32b9cdf80ad |
| Issue introduced in 6.4 with commit 5e31b3df86ec6fbb925eee77fe2c450099c61dff and fixed in 6.7.6 with commit d24eb9a27bea8fe5237fa71be274391d9d51eff2 |
| Issue introduced in 6.4 with commit 5e31b3df86ec6fbb925eee77fe2c450099c61dff and fixed in 6.8 with commit 353d321f63f7dbfc9ef58498cc732c9fe886a596 |
| |
| 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-2024-26694 |
| 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/iwl-drv.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/ab9d4bb9a1892439b3123fc52b19e32b9cdf80ad |
| https://git.kernel.org/stable/c/d24eb9a27bea8fe5237fa71be274391d9d51eff2 |
| https://git.kernel.org/stable/c/353d321f63f7dbfc9ef58498cc732c9fe886a596 |
