| 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-2023-52687: crypto: safexcel - Add error handling for dma_map_sg() calls |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| crypto: safexcel - Add error handling for dma_map_sg() calls |
| |
| Macro dma_map_sg() may return 0 on error. This patch enables |
| checks in case of the macro failure and ensures unmapping of |
| previously mapped buffers with dma_unmap_sg(). |
| |
| Found by Linux Verification Center (linuxtesting.org) with static |
| analysis tool SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52687 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1 with commit 49186a7d9e46ff132a0ed9b721ad6b6a58dba6c1 and fixed in 6.1.75 with commit 4c0ac81a172a69a7733290915276672787e904ec |
| Issue introduced in 6.1 with commit 49186a7d9e46ff132a0ed9b721ad6b6a58dba6c1 and fixed in 6.6.14 with commit 8084b788c2fb1260f7d44c032d5124680b20d2b2 |
| Issue introduced in 6.1 with commit 49186a7d9e46ff132a0ed9b721ad6b6a58dba6c1 and fixed in 6.7.2 with commit fc0b785802b856566df3ac943e38a072557001c4 |
| Issue introduced in 6.1 with commit 49186a7d9e46ff132a0ed9b721ad6b6a58dba6c1 and fixed in 6.8 with commit 87e02063d07708cac5bfe9fd3a6a242898758ac8 |
| |
| 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-2023-52687 |
| 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/crypto/inside-secure/safexcel_cipher.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/4c0ac81a172a69a7733290915276672787e904ec |
| https://git.kernel.org/stable/c/8084b788c2fb1260f7d44c032d5124680b20d2b2 |
| https://git.kernel.org/stable/c/fc0b785802b856566df3ac943e38a072557001c4 |
| https://git.kernel.org/stable/c/87e02063d07708cac5bfe9fd3a6a242898758ac8 |
