| 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-2022-49719: irqchip/gic/realview: Fix refcount leak in realview_gic_of_init |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| irqchip/gic/realview: Fix refcount leak in realview_gic_of_init |
| |
| of_find_matching_node_and_match() returns a node pointer with refcount |
| incremented, we should use of_node_put() on it when not need anymore. |
| Add missing of_node_put() to avoid refcount leak. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49719 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 4.9.320 with commit 87da903ce632d5689bef66d56ee5dae700d82104 |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 4.14.285 with commit 486f68f85085d9b16ae097679b1486dcb1b6eb69 |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 4.19.249 with commit b634af84bc1edece4e63317b0ad95618dd3a8693 |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 5.4.200 with commit 56526c3883fc7a1f5898b1d40a02c8b8685a5d92 |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 5.10.124 with commit e52a58b79f11755ea7e877015c4a1704303fa55f |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 5.15.49 with commit 5d38720661a4b9c87705c206a6081177ffb8ec1d |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 5.18.6 with commit 16b603cb8d34c2d917983918db1f88c8b831baaa |
| Issue introduced in 4.6 with commit 82b0a434b436f5da69ddd24bd6a6fa5dc4484310 and fixed in 5.19 with commit f4b98e314888cc51486421bcf6d52852452ea48b |
| |
| 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-2022-49719 |
| 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/irqchip/irq-gic-realview.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/87da903ce632d5689bef66d56ee5dae700d82104 |
| https://git.kernel.org/stable/c/486f68f85085d9b16ae097679b1486dcb1b6eb69 |
| https://git.kernel.org/stable/c/b634af84bc1edece4e63317b0ad95618dd3a8693 |
| https://git.kernel.org/stable/c/56526c3883fc7a1f5898b1d40a02c8b8685a5d92 |
| https://git.kernel.org/stable/c/e52a58b79f11755ea7e877015c4a1704303fa55f |
| https://git.kernel.org/stable/c/5d38720661a4b9c87705c206a6081177ffb8ec1d |
| https://git.kernel.org/stable/c/16b603cb8d34c2d917983918db1f88c8b831baaa |
| https://git.kernel.org/stable/c/f4b98e314888cc51486421bcf6d52852452ea48b |
