| 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-2023-52656: io_uring: drop any code related to SCM_RIGHTS |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| io_uring: drop any code related to SCM_RIGHTS |
| |
| This is dead code after we dropped support for passing io_uring fds |
| over SCM_RIGHTS, get rid of it. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52656 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.1 with commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e and fixed in 5.4.273 with commit cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3 |
| Issue introduced in 5.1 with commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e and fixed in 5.10.214 with commit a6771f343af90a25f3a14911634562bb5621df02 |
| Issue introduced in 5.1 with commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e and fixed in 5.15.153 with commit d909d381c3152393421403be4b6435f17a2378b4 |
| Issue introduced in 5.1 with commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e and fixed in 6.1.83 with commit a3812a47a32022ca76bf46ddacdd823dc2aabf8b |
| Issue introduced in 5.1 with commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e and fixed in 6.7.11 with commit 88c49d9c896143cdc0f77197c4dcf24140375e89 |
| Issue introduced in 5.1 with commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e and fixed in 6.8 with commit 6e5e6d274956305f1fc0340522b38f5f5be74bdb |
| |
| 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-2023-52656 |
| 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: |
| include/linux/io_uring_types.h |
| io_uring/filetable.c |
| io_uring/io_uring.c |
| io_uring/rsrc.c |
| io_uring/rsrc.h |
| |
| |
| 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/cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3 |
| https://git.kernel.org/stable/c/a6771f343af90a25f3a14911634562bb5621df02 |
| https://git.kernel.org/stable/c/d909d381c3152393421403be4b6435f17a2378b4 |
| https://git.kernel.org/stable/c/a3812a47a32022ca76bf46ddacdd823dc2aabf8b |
| https://git.kernel.org/stable/c/88c49d9c896143cdc0f77197c4dcf24140375e89 |
| https://git.kernel.org/stable/c/6e5e6d274956305f1fc0340522b38f5f5be74bdb |
