| 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-2022-49681: xtensa: xtfpga: Fix refcount leak bug in setup |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| xtensa: xtfpga: Fix refcount leak bug in setup |
| |
| In machine_setup(), of_find_compatible_node() will return a node |
| pointer with refcount incremented. We should use of_node_put() when |
| it is not used anymore. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49681 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.9.321 with commit b12d5c52f073a0420622aaf2f21b615cce8b36cc |
| Fixed in 4.14.286 with commit 35d7e961be68732eb3acaeba81fb81ca16eafd05 |
| Fixed in 4.19.250 with commit 0715d0e60052662c3f225342062f174dd721d1c7 |
| Fixed in 5.4.202 with commit a52972ee706b438302eb0350e61f378eb191e3d1 |
| Fixed in 5.10.127 with commit 6c0839cf1b9e1b3c88da6af76794583cbfae8da3 |
| Fixed in 5.15.51 with commit 0162451723178602c37f0555d235dfa17e486112 |
| Fixed in 5.18.8 with commit 9b30c5c8884eda3f541229899671cebbad15979b |
| Fixed in 5.19 with commit 173940b3ae40114d4179c251a98ee039dc9cd5b3 |
| |
| 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-2022-49681 |
| 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: |
| arch/xtensa/platforms/xtfpga/setup.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/b12d5c52f073a0420622aaf2f21b615cce8b36cc |
| https://git.kernel.org/stable/c/35d7e961be68732eb3acaeba81fb81ca16eafd05 |
| https://git.kernel.org/stable/c/0715d0e60052662c3f225342062f174dd721d1c7 |
| https://git.kernel.org/stable/c/a52972ee706b438302eb0350e61f378eb191e3d1 |
| https://git.kernel.org/stable/c/6c0839cf1b9e1b3c88da6af76794583cbfae8da3 |
| https://git.kernel.org/stable/c/0162451723178602c37f0555d235dfa17e486112 |
| https://git.kernel.org/stable/c/9b30c5c8884eda3f541229899671cebbad15979b |
| https://git.kernel.org/stable/c/173940b3ae40114d4179c251a98ee039dc9cd5b3 |
