| 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-2024-53189: wifi: nl80211: fix bounds checker error in nl80211_parse_sched_scan |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: nl80211: fix bounds checker error in nl80211_parse_sched_scan |
| |
| The channels array in the cfg80211_scan_request has a __counted_by |
| attribute attached to it, which points to the n_channels variable. This |
| attribute is used in bounds checking, and if it is not set before the |
| array is filled, then the bounds sanitizer will issue a warning or a |
| kernel panic if CONFIG_UBSAN_TRAP is set. |
| |
| This patch sets the size of allocated memory as the initial value for |
| n_channels. It is updated with the actual number of added elements after |
| the array is filled. |
| |
| The Linux kernel CVE team has assigned CVE-2024-53189 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.11 with commit aa4ec06c455d0200eea0a4361cc58eb5b8bf68c4 and fixed in 6.11.11 with commit d4ef643ea78c59c22546046c25dc6e7206267672 |
| Issue introduced in 6.11 with commit aa4ec06c455d0200eea0a4361cc58eb5b8bf68c4 and fixed in 6.12.2 with commit 1a7b62ddf2c7642878c24f0e556041bb58c37527 |
| Issue introduced in 6.11 with commit aa4ec06c455d0200eea0a4361cc58eb5b8bf68c4 and fixed in 6.13 with commit 9c46a3a5b394d6d123866aa44436fc2cd342eb0d |
| |
| 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-2024-53189 |
| 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: |
| net/wireless/nl80211.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/d4ef643ea78c59c22546046c25dc6e7206267672 |
| https://git.kernel.org/stable/c/1a7b62ddf2c7642878c24f0e556041bb58c37527 |
| https://git.kernel.org/stable/c/9c46a3a5b394d6d123866aa44436fc2cd342eb0d |
