| 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-2021-47474: comedi: vmk80xx: fix bulk-buffer overflow |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| comedi: vmk80xx: fix bulk-buffer overflow |
| |
| The driver is using endpoint-sized buffers but must not assume that the |
| tx and rx buffers are of equal size or a malicious device could overflow |
| the slab-allocated receive buffer when doing bulk transfers. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47474 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 4.4.292 with commit e0e6a63fd97ad95fe05dfd77268a1952551e11a7 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 4.9.290 with commit 7cfb35db607760698d299fd1cf7402dfa8f09973 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 4.14.255 with commit 0866dcaa828c21bc2f94dac00e086078f11b5772 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 4.19.217 with commit 063f576c43d589a4c153554b681d32b3f8317c7b |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 5.4.159 with commit 1ae4715121a57bc6fa29fd992127b01907f2f993 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 5.10.79 with commit b7fd7f3387f070215e6be341e68eb5c087eeecc0 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 5.14.18 with commit 7b0e356189327287d0eb98ec081bd6dd97068cd3 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 5.15.2 with commit 47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 |
| Issue introduced in 2.6.31 with commit 985cafccbf9b7f862aa1c5ee566801e18b5161fb and fixed in 5.16 with commit 78cdfd62bd54af615fba9e3ca1ba35de39d3871d |
| |
| 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-2021-47474 |
| 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/comedi/drivers/vmk80xx.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/e0e6a63fd97ad95fe05dfd77268a1952551e11a7 |
| https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973 |
| https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772 |
| https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b |
| https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993 |
| https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0 |
| https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3 |
| https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 |
| https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d |
