| 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-2022-49109: ceph: fix inode reference leakage in ceph_get_snapdir() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ceph: fix inode reference leakage in ceph_get_snapdir() |
| |
| The ceph_get_inode() will search for or insert a new inode into the |
| hash for the given vino, and return a reference to it. If new is |
| non-NULL, its reference is consumed. |
| |
| We should release the reference when in error handing cases. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49109 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.15.34 with commit 3ae7163598c611a8892698e0c056fe794e52b44b |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.16.20 with commit 9cd21981dedfb4fe9f344529e4be35727cb10940 |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.17.3 with commit b2d9bb3f06abddefdfa740b0a604575b6797e1bf |
| Issue introduced in 2.6.34 with commit 9030aaf9bf0a1eee47a154c316c789e959638b0f and fixed in 5.18 with commit 322794d3355c33adcc4feace0045d85a8e4ed813 |
| |
| 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-2022-49109 |
| 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/inode.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/3ae7163598c611a8892698e0c056fe794e52b44b |
| https://git.kernel.org/stable/c/9cd21981dedfb4fe9f344529e4be35727cb10940 |
| https://git.kernel.org/stable/c/b2d9bb3f06abddefdfa740b0a604575b6797e1bf |
| https://git.kernel.org/stable/c/322794d3355c33adcc4feace0045d85a8e4ed813 |
