| 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-2021-47405: HID: usbhid: free raw_report buffers in usbhid_stop |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| HID: usbhid: free raw_report buffers in usbhid_stop |
| |
| Free the unsent raw_report buffers when the device is removed. |
| |
| Fixes a memory leak reported by syzbot at: |
| https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47 |
| |
| The Linux kernel CVE team has assigned CVE-2021-47405 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.4.286 with commit 7ce4e49146612261265671b1d30d117139021030 |
| Fixed in 4.9.285 with commit efc5c8d29256955cc90d8d570849b2d6121ed09f |
| Fixed in 4.14.249 with commit c3156fea4d8a0e643625dff69a0421e872d1fdae |
| Fixed in 4.19.209 with commit 764ac04de056801dfe52a716da63f6e7018e7f3b |
| Fixed in 5.4.151 with commit 965147067fa1bedff3ae1f07ce3f89f1a14d2df3 |
| Fixed in 5.10.71 with commit f7ac4d24e1610b92689946fa88177673f1e88a3f |
| Fixed in 5.14.10 with commit 2b704864c92dcec2b295f276fcfbfb81d9831f81 |
| Fixed in 5.15 with commit f7744fa16b96da57187dc8e5634152d3b63d72de |
| |
| 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-2021-47405 |
| 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/hid/usbhid/hid-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/7ce4e49146612261265671b1d30d117139021030 |
| https://git.kernel.org/stable/c/efc5c8d29256955cc90d8d570849b2d6121ed09f |
| https://git.kernel.org/stable/c/c3156fea4d8a0e643625dff69a0421e872d1fdae |
| https://git.kernel.org/stable/c/764ac04de056801dfe52a716da63f6e7018e7f3b |
| https://git.kernel.org/stable/c/965147067fa1bedff3ae1f07ce3f89f1a14d2df3 |
| https://git.kernel.org/stable/c/f7ac4d24e1610b92689946fa88177673f1e88a3f |
| https://git.kernel.org/stable/c/2b704864c92dcec2b295f276fcfbfb81d9831f81 |
| https://git.kernel.org/stable/c/f7744fa16b96da57187dc8e5634152d3b63d72de |
