| 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-2022-49278: remoteproc: Fix count check in rproc_coredump_write() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| remoteproc: Fix count check in rproc_coredump_write() |
| |
| Check count for 0, to avoid a potential underflow. Make the check the |
| same as the one in rproc_recovery_write(). |
| |
| The Linux kernel CVE team has assigned CVE-2022-49278 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.9 with commit 3afdc59e4390487f04f2435b7e8a6289984e0a1e and fixed in 5.10.110 with commit b97b305656a7013690e7b6e310f0e827e0bbff90 |
| Issue introduced in 5.9 with commit 3afdc59e4390487f04f2435b7e8a6289984e0a1e and fixed in 5.15.33 with commit 34afac3c75fa08d6fabbab4c93f0a90618afaaa6 |
| Issue introduced in 5.9 with commit 3afdc59e4390487f04f2435b7e8a6289984e0a1e and fixed in 5.16.19 with commit a8c3e53517985d69040a1b36a269e85f99cf0cea |
| Issue introduced in 5.9 with commit 3afdc59e4390487f04f2435b7e8a6289984e0a1e and fixed in 5.17.2 with commit 11572dad9fbadbd9269a2550f7e236b5b8c2d80c |
| Issue introduced in 5.9 with commit 3afdc59e4390487f04f2435b7e8a6289984e0a1e and fixed in 5.18 with commit f89672cc3681952f2d06314981a6b45f8b0045d1 |
| |
| 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-2022-49278 |
| 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/remoteproc/remoteproc_debugfs.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/b97b305656a7013690e7b6e310f0e827e0bbff90 |
| https://git.kernel.org/stable/c/34afac3c75fa08d6fabbab4c93f0a90618afaaa6 |
| https://git.kernel.org/stable/c/a8c3e53517985d69040a1b36a269e85f99cf0cea |
| https://git.kernel.org/stable/c/11572dad9fbadbd9269a2550f7e236b5b8c2d80c |
| https://git.kernel.org/stable/c/f89672cc3681952f2d06314981a6b45f8b0045d1 |
