| 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-2022-49392: serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe |
| |
| platform_get_resource() may fail and return NULL, so we should |
| better check it's return value to avoid a NULL pointer dereference. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49392 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.14 with commit 54da3e381c2b55289b220601f403f17df7b20597 and fixed in 5.15.47 with commit 923d34ce069e8e51a4d003caa6b66a8cd6ecd0ed |
| Issue introduced in 5.14 with commit 54da3e381c2b55289b220601f403f17df7b20597 and fixed in 5.17.15 with commit 90a6b6fc52bfdcfe9698454bf5bea26112abbcd1 |
| Issue introduced in 5.14 with commit 54da3e381c2b55289b220601f403f17df7b20597 and fixed in 5.18.4 with commit d5f1275f101e0e8a172d300d897f5a12e87e3485 |
| Issue introduced in 5.14 with commit 54da3e381c2b55289b220601f403f17df7b20597 and fixed in 5.19 with commit 0e0fd55719fa081de6f9e5d9e6cef48efb04d34a |
| |
| 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-2022-49392 |
| 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/tty/serial/8250/8250_aspeed_vuart.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/923d34ce069e8e51a4d003caa6b66a8cd6ecd0ed |
| https://git.kernel.org/stable/c/90a6b6fc52bfdcfe9698454bf5bea26112abbcd1 |
| https://git.kernel.org/stable/c/d5f1275f101e0e8a172d300d897f5a12e87e3485 |
| https://git.kernel.org/stable/c/0e0fd55719fa081de6f9e5d9e6cef48efb04d34a |
