| 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-2021-47315: memory: fsl_ifc: fix leak of IO mapping on probe failure |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| memory: fsl_ifc: fix leak of IO mapping on probe failure |
| |
| On probe error the driver should unmap the IO memory. Smatch reports: |
| |
| drivers/memory/fsl_ifc.c:298 fsl_ifc_ctrl_probe() warn: 'fsl_ifc_ctrl_dev->gregs' not released on lines: 298. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47315 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 4.9.276 with commit d0d04b95e8ed0223844a1d58497c686fe2e4a955 |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 4.14.240 with commit 6b3b002de90738e3c85853a682ce7e0fa078d42b |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 4.19.198 with commit 94bc2fe46102d1e060fc749c0c19511e76c9995f |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 5.4.134 with commit d9213d4f372d30b5bc4d921795d6bed0c0e3eebf |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 5.10.52 with commit 8d071d270afba468708faca5f7b6d9e656f75e27 |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 5.12.19 with commit 83af5816308b490b05fc8fa27fc1bdc769df200a |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 5.13.4 with commit 28f71fd81ebd3b386bf5c7c5539664156f7d72c1 |
| Issue introduced in 3.3 with commit a20cbdeffce247a2b6fb83cd8d22433994068565 and fixed in 5.14 with commit 3b132ab67fc7a358fff35e808fa65d4bea452521 |
| |
| 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-2021-47315 |
| 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/memory/fsl_ifc.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/d0d04b95e8ed0223844a1d58497c686fe2e4a955 |
| https://git.kernel.org/stable/c/6b3b002de90738e3c85853a682ce7e0fa078d42b |
| https://git.kernel.org/stable/c/94bc2fe46102d1e060fc749c0c19511e76c9995f |
| https://git.kernel.org/stable/c/d9213d4f372d30b5bc4d921795d6bed0c0e3eebf |
| https://git.kernel.org/stable/c/8d071d270afba468708faca5f7b6d9e656f75e27 |
| https://git.kernel.org/stable/c/83af5816308b490b05fc8fa27fc1bdc769df200a |
| https://git.kernel.org/stable/c/28f71fd81ebd3b386bf5c7c5539664156f7d72c1 |
| https://git.kernel.org/stable/c/3b132ab67fc7a358fff35e808fa65d4bea452521 |
