| 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-2024-40982: ssb: Fix potential NULL pointer dereference in ssb_device_uevent() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ssb: Fix potential NULL pointer dereference in ssb_device_uevent() |
| |
| The ssb_device_uevent() function first attempts to convert the 'dev' pointer |
| to 'struct ssb_device *'. However, it mistakenly dereferences 'dev' before |
| performing the NULL check, potentially leading to a NULL pointer |
| dereference if 'dev' is NULL. |
| |
| To fix this issue, move the NULL check before dereferencing the 'dev' pointer, |
| ensuring that the pointer is valid before attempting to use it. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40982 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.6.36 with commit c5dc2d8eb3981bae261ea7d1060a80868e886813 |
| Fixed in 6.9.7 with commit 7d43c8377c6fc846b1812f8df360425c9323dc56 |
| Fixed in 6.10 with commit 789c17185fb0f39560496c2beab9b57ce1d0cbe7 |
| |
| 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-2024-40982 |
| 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/ssb/main.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/c5dc2d8eb3981bae261ea7d1060a80868e886813 |
| https://git.kernel.org/stable/c/7d43c8377c6fc846b1812f8df360425c9323dc56 |
| https://git.kernel.org/stable/c/789c17185fb0f39560496c2beab9b57ce1d0cbe7 |
