| 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-2022-49356: SUNRPC: Trap RDMA segment overflows |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| SUNRPC: Trap RDMA segment overflows |
| |
| Prevent svc_rdma_build_writes() from walking off the end of a Write |
| chunk's segment array. Caught with KASAN. |
| |
| The test that this fix replaces is invalid, and might have been left |
| over from an earlier prototype of the PCL work. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49356 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.11 with commit 7a1cbfa18059a40d4752dab057384c3ca2de326c and fixed in 5.15.47 with commit ea26bf5eca1459b5a7824997d7823409ce38214e |
| Issue introduced in 5.11 with commit 7a1cbfa18059a40d4752dab057384c3ca2de326c and fixed in 5.17.15 with commit 812c13521d4a72469c78ce06d8cdc8dc5b5557b5 |
| Issue introduced in 5.11 with commit 7a1cbfa18059a40d4752dab057384c3ca2de326c and fixed in 5.18.4 with commit 659f7568e09593945c221bf20217a82ebdfe1328 |
| Issue introduced in 5.11 with commit 7a1cbfa18059a40d4752dab057384c3ca2de326c and fixed in 5.19 with commit f012e95b377c73c0283f009823c633104dedb337 |
| |
| 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-2022-49356 |
| 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: |
| net/sunrpc/xprtrdma/svc_rdma_rw.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/ea26bf5eca1459b5a7824997d7823409ce38214e |
| https://git.kernel.org/stable/c/812c13521d4a72469c78ce06d8cdc8dc5b5557b5 |
| https://git.kernel.org/stable/c/659f7568e09593945c221bf20217a82ebdfe1328 |
| https://git.kernel.org/stable/c/f012e95b377c73c0283f009823c633104dedb337 |
