| 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-2022-49107: ceph: fix memory leak in ceph_readdir when note_last_dentry returns error |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ceph: fix memory leak in ceph_readdir when note_last_dentry returns error |
| |
| Reset the last_readdir at the same time, and add a comment explaining |
| why we don't free last_readdir when dir_emit returns false. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49107 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.10.111 with commit f4429786129648a8f4bb1e5faa143c4478cc5c4a |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.15.34 with commit 2fe82d3254029ef9ec4e7be890125d5ef4f537de |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.16.20 with commit e792575b902a3939ca482491ee9fb3a236f99640 |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.17.3 with commit 7f740ede35132d3d5d19747cad56a511d21bb156 |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.18 with commit f639d9867eea647005dc824e0e24f39ffc50d4e4 |
| |
| 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-2022-49107 |
| 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/ceph/dir.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/f4429786129648a8f4bb1e5faa143c4478cc5c4a |
| https://git.kernel.org/stable/c/2fe82d3254029ef9ec4e7be890125d5ef4f537de |
| https://git.kernel.org/stable/c/e792575b902a3939ca482491ee9fb3a236f99640 |
| https://git.kernel.org/stable/c/7f740ede35132d3d5d19747cad56a511d21bb156 |
| https://git.kernel.org/stable/c/f639d9867eea647005dc824e0e24f39ffc50d4e4 |
