| 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-2021-47660: fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()' |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()' |
| |
| All error handling paths lead to 'out' where many resources are freed. |
| |
| Do it as well here instead of a direct return, otherwise 'log', 'ra' and |
| 'log->one_page_buf' (at least) will leak. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47660 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit b46acd6a6a627d876898e1c84d3f84902264b445 and fixed in 5.15.46 with commit d8be98ab88250dc12a98efdb703792a537b0eac3 |
| Issue introduced in 5.15 with commit b46acd6a6a627d876898e1c84d3f84902264b445 and fixed in 5.17.14 with commit bc4a1d384a04c6dba9312e1421a9f9f7c03339a4 |
| Issue introduced in 5.15 with commit b46acd6a6a627d876898e1c84d3f84902264b445 and fixed in 5.18.3 with commit 2c97519ed6b4239594c58ddacf3d0d576cf070cc |
| Issue introduced in 5.15 with commit b46acd6a6a627d876898e1c84d3f84902264b445 and fixed in 5.19 with commit e589f9b7078e1c0191613cd736f598e81d2390de |
| |
| 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-2021-47660 |
| 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: |
| fs/ntfs3/fslog.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/d8be98ab88250dc12a98efdb703792a537b0eac3 |
| https://git.kernel.org/stable/c/bc4a1d384a04c6dba9312e1421a9f9f7c03339a4 |
| https://git.kernel.org/stable/c/2c97519ed6b4239594c58ddacf3d0d576cf070cc |
| https://git.kernel.org/stable/c/e589f9b7078e1c0191613cd736f598e81d2390de |
