| 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-2022-49279: NFSD: prevent integer overflow on 32 bit systems |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| NFSD: prevent integer overflow on 32 bit systems |
| |
| On a 32 bit system, the "len * sizeof(*p)" operation can have an |
| integer overflow. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49279 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.238 with commit 3a2789e8ccb4a3e2a631f6817a2d3bb98b8c4fd8 |
| Fixed in 5.4.189 with commit ce1aa09cc14ed625104acc2d487bd92b9a88efe2 |
| Fixed in 5.10.110 with commit 7af164fa2f1abc577d357d22d83a2f3490875d7e |
| Fixed in 5.15.33 with commit 303cd6173dce0a28d26526c77814eb90a41bd898 |
| Fixed in 5.16.19 with commit 79b1c54fc6ce09ee0d5fe088bb3de26ae2150e3c |
| Fixed in 5.17.2 with commit e4195d27306ea468a6dc3a27af6f586709951229 |
| Fixed in 5.18 with commit 23a9dbbe0faf124fc4c139615633b9d12a3a89ef |
| |
| 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-2022-49279 |
| 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: |
| include/linux/sunrpc/xdr.h |
| |
| |
| 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/3a2789e8ccb4a3e2a631f6817a2d3bb98b8c4fd8 |
| https://git.kernel.org/stable/c/ce1aa09cc14ed625104acc2d487bd92b9a88efe2 |
| https://git.kernel.org/stable/c/7af164fa2f1abc577d357d22d83a2f3490875d7e |
| https://git.kernel.org/stable/c/303cd6173dce0a28d26526c77814eb90a41bd898 |
| https://git.kernel.org/stable/c/79b1c54fc6ce09ee0d5fe088bb3de26ae2150e3c |
| https://git.kernel.org/stable/c/e4195d27306ea468a6dc3a27af6f586709951229 |
| https://git.kernel.org/stable/c/23a9dbbe0faf124fc4c139615633b9d12a3a89ef |
