| 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-2024-41052: vfio/pci: Init the count variable in collecting hot-reset devices |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| vfio/pci: Init the count variable in collecting hot-reset devices |
| |
| The count variable is used without initialization, it results in mistakes |
| in the device counting and crashes the userspace if the get hot reset info |
| path is triggered. |
| |
| The Linux kernel CVE team has assigned CVE-2024-41052 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6.36 with commit 618fbf4c910a06a3aa6a8b88a5fb1f2197f964f3 and fixed in 6.6.41 with commit f476dffc52ea70745dcabf63288e770e50ac9ab3 |
| Issue introduced in 6.9.7 with commit 9313244c26f3792daa86f3a18cc3bd5ad60310e0 and fixed in 6.9.10 with commit f44136b9652291ac1fc39ca67c053ac624d0d11b |
| |
| 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-2024-41052 |
| 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/vfio/pci/vfio_pci_core.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/f476dffc52ea70745dcabf63288e770e50ac9ab3 |
| https://git.kernel.org/stable/c/f44136b9652291ac1fc39ca67c053ac624d0d11b |
| https://git.kernel.org/stable/c/5a88a3f67e37e39f933b38ebb4985ba5822e9eca |
