| 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-2024-47737: nfsd: call cache_put if xdr_reserve_space returns NULL |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nfsd: call cache_put if xdr_reserve_space returns NULL |
| |
| If not enough buffer space available, but idmap_lookup has triggered |
| lookup_fn which calls cache_get and returns successfully. Then we |
| missed to call cache_put here which pairs with cache_get. |
| |
| Reviwed-by: Jeff Layton <jlayton@kernel.org> |
| |
| The Linux kernel CVE team has assigned CVE-2024-47737 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 4.19.323 with commit 3e8081ebff12bec1347deaceb6bce0765cce54df |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 5.4.285 with commit c6b16e700cf4d959af524bd9d3978407ff7ce462 |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 5.10.227 with commit 9f03f0016ff797932551881c7e06ae50e9c39134 |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 5.15.168 with commit 9803ab882d565a8fb2dde5999d98866d1c499dfd |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 6.1.113 with commit 81821617312988096f5deccf0f7da6f888e98056 |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 6.6.54 with commit a1afbbb5276f943ad7173d0b4c626b8c75a260da |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 6.10.13 with commit e32ee6a61041925d1a05c14d10352dcfce9ef029 |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 6.11.2 with commit 8d0765f86135e27f0bb5c950c136495719b4c834 |
| Issue introduced in 3.16 with commit ddd1ea56367202f6c99135cd59de7a97af4c4ffd and fixed in 6.12 with commit d078cbf5c38de83bc31f83c47dcd2184c04a50c7 |
| |
| 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-2024-47737 |
| 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/nfsd/nfs4idmap.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/3e8081ebff12bec1347deaceb6bce0765cce54df |
| https://git.kernel.org/stable/c/c6b16e700cf4d959af524bd9d3978407ff7ce462 |
| https://git.kernel.org/stable/c/9f03f0016ff797932551881c7e06ae50e9c39134 |
| https://git.kernel.org/stable/c/9803ab882d565a8fb2dde5999d98866d1c499dfd |
| https://git.kernel.org/stable/c/81821617312988096f5deccf0f7da6f888e98056 |
| https://git.kernel.org/stable/c/a1afbbb5276f943ad7173d0b4c626b8c75a260da |
| https://git.kernel.org/stable/c/e32ee6a61041925d1a05c14d10352dcfce9ef029 |
| https://git.kernel.org/stable/c/8d0765f86135e27f0bb5c950c136495719b4c834 |
| https://git.kernel.org/stable/c/d078cbf5c38de83bc31f83c47dcd2184c04a50c7 |
