| 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-2022-49102: habanalabs: fix possible memory leak in MMU DR fini |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| habanalabs: fix possible memory leak in MMU DR fini |
| |
| This patch fixes what seems to be copy paste error. |
| |
| We will have a memory leak if the host-resident shadow is NULL (which |
| will likely happen as the DR and HR are not dependent). |
| |
| The Linux kernel CVE team has assigned CVE-2022-49102 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.1 with commit 0feaf86d4e69507ab9b2af7dcc63a6886352d5db and fixed in 5.15.34 with commit 12e49aefda2e04b07604f13e03f40027cbeb0dc6 |
| Issue introduced in 5.1 with commit 0feaf86d4e69507ab9b2af7dcc63a6886352d5db and fixed in 5.16.20 with commit 6d421fb7a9eddd8ce0a05641a3db97283fe20699 |
| Issue introduced in 5.1 with commit 0feaf86d4e69507ab9b2af7dcc63a6886352d5db and fixed in 5.17.3 with commit 30058d3a83cfe8c6aacbfe5ab13c01dd0c1799e3 |
| Issue introduced in 5.1 with commit 0feaf86d4e69507ab9b2af7dcc63a6886352d5db and fixed in 5.18 with commit eb85eec858c1a5c11d3a0bff403f6440b05b40dc |
| |
| 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-2022-49102 |
| 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: |
| drivers/misc/habanalabs/common/mmu/mmu_v1.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/12e49aefda2e04b07604f13e03f40027cbeb0dc6 |
| https://git.kernel.org/stable/c/6d421fb7a9eddd8ce0a05641a3db97283fe20699 |
| https://git.kernel.org/stable/c/30058d3a83cfe8c6aacbfe5ab13c01dd0c1799e3 |
| https://git.kernel.org/stable/c/eb85eec858c1a5c11d3a0bff403f6440b05b40dc |
