| 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-2022-48834: usb: usbtmc: Fix bug in pipe direction for control transfers |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| usb: usbtmc: Fix bug in pipe direction for control transfers |
| |
| The syzbot fuzzer reported a minor bug in the usbtmc driver: |
| |
| usb 5-1: BOGUS control dir, pipe 80001e80 doesn't match bRequestType 0 |
| WARNING: CPU: 0 PID: 3813 at drivers/usb/core/urb.c:412 |
| usb_submit_urb+0x13a5/0x1970 drivers/usb/core/urb.c:410 |
| Modules linked in: |
| CPU: 0 PID: 3813 Comm: syz-executor122 Not tainted |
| 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0 |
| ... |
| Call Trace: |
| <TASK> |
| usb_start_wait_urb+0x113/0x530 drivers/usb/core/message.c:58 |
| usb_internal_control_msg drivers/usb/core/message.c:102 [inline] |
| usb_control_msg+0x2a5/0x4b0 drivers/usb/core/message.c:153 |
| usbtmc_ioctl_request drivers/usb/class/usbtmc.c:1947 [inline] |
| |
| The problem is that usbtmc_ioctl_request() uses usb_rcvctrlpipe() for |
| all of its transfers, whether they are in or out. It's easy to fix. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48834 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.4.187 with commit 700a0715854c1e79a73341724ce4f5bb01abc016 |
| Fixed in 5.10.108 with commit 10a805334a11acd547602d6c4cf540a0f6ab5c6e |
| Fixed in 5.15.31 with commit c69aef9db878ab277068a8cc1b4bf0cf309dc2b7 |
| Fixed in 5.16.17 with commit 5f6a2d63c68c12cf61259df7c3527a0e05dce952 |
| Fixed in 5.17 with commit e9b667a82cdcfe21d590344447d65daed52b353b |
| |
| 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-2022-48834 |
| 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/usb/class/usbtmc.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/700a0715854c1e79a73341724ce4f5bb01abc016 |
| https://git.kernel.org/stable/c/10a805334a11acd547602d6c4cf540a0f6ab5c6e |
| https://git.kernel.org/stable/c/c69aef9db878ab277068a8cc1b4bf0cf309dc2b7 |
| https://git.kernel.org/stable/c/5f6a2d63c68c12cf61259df7c3527a0e05dce952 |
| https://git.kernel.org/stable/c/e9b667a82cdcfe21d590344447d65daed52b353b |
