| 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-2022-49351: net: altera: Fix refcount leak in altera_tse_mdio_create |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: altera: Fix refcount leak in altera_tse_mdio_create |
| |
| Every iteration of for_each_child_of_node() decrements |
| the reference count of the previous node. |
| When break from a for_each_child_of_node() loop, |
| we need to explicitly call of_node_put() on the child node when |
| not need anymore. |
| Add missing of_node_put() to avoid refcount leak. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49351 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 4.9.318 with commit a013fa884d8738ad8455aa1a843b8c9d80c6c833 |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 4.14.283 with commit 1fd12298a0e0ca23478c715e672ee64c85670584 |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 4.19.247 with commit 5cd0e22fa11f4a21a8c09cc258f20b1474c95801 |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 5.4.198 with commit 8174acbef87b8dd8bf3731eba2a5af1ac857e239 |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 5.10.122 with commit 96bf5ed057df2d157274d4e2079002f9a9404bb8 |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 5.15.47 with commit e31d9ba169860687dba19bdc8fccbfd34077f655 |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 5.17.15 with commit 803b217f1fb49a2dbb2123acdb45111b9c48b8be |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 5.18.4 with commit 4f850fe0a32c3f1e19b76996a3b1ca32637a14de |
| Issue introduced in 3.15 with commit bbd2190ce96d8fce031f0526c1f970b68adc9d1a and fixed in 5.19 with commit 11ec18b1d8d92b9df307d31950dcba0b3dd7283c |
| |
| 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-2022-49351 |
| 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/net/ethernet/altera/altera_tse_main.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/a013fa884d8738ad8455aa1a843b8c9d80c6c833 |
| https://git.kernel.org/stable/c/1fd12298a0e0ca23478c715e672ee64c85670584 |
| https://git.kernel.org/stable/c/5cd0e22fa11f4a21a8c09cc258f20b1474c95801 |
| https://git.kernel.org/stable/c/8174acbef87b8dd8bf3731eba2a5af1ac857e239 |
| https://git.kernel.org/stable/c/96bf5ed057df2d157274d4e2079002f9a9404bb8 |
| https://git.kernel.org/stable/c/e31d9ba169860687dba19bdc8fccbfd34077f655 |
| https://git.kernel.org/stable/c/803b217f1fb49a2dbb2123acdb45111b9c48b8be |
| https://git.kernel.org/stable/c/4f850fe0a32c3f1e19b76996a3b1ca32637a14de |
| https://git.kernel.org/stable/c/11ec18b1d8d92b9df307d31950dcba0b3dd7283c |
