| 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-2021-47204: net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove |
| |
| Access to netdev after free_netdev() will cause use-after-free bug. |
| Move debug log before free_netdev() call to avoid it. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47204 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.17 with commit 7472dd9f649958be6a8880ed439233c8414a7b34 and fixed in 5.4.162 with commit d74ff10ed2d93dc9b67e99a74b36fb9a83273d8a |
| Issue introduced in 4.17 with commit 7472dd9f649958be6a8880ed439233c8414a7b34 and fixed in 5.10.82 with commit 1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9 |
| Issue introduced in 4.17 with commit 7472dd9f649958be6a8880ed439233c8414a7b34 and fixed in 5.15.5 with commit 32d4686224744819ddcae58b666c21d2a4ef4c88 |
| Issue introduced in 4.17 with commit 7472dd9f649958be6a8880ed439233c8414a7b34 and fixed in 5.16 with commit 9b5a333272a48c2f8b30add7a874e46e8b26129c |
| |
| 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-2021-47204 |
| 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/freescale/dpaa2/dpaa2-eth.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/d74ff10ed2d93dc9b67e99a74b36fb9a83273d8a |
| https://git.kernel.org/stable/c/1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9 |
| https://git.kernel.org/stable/c/32d4686224744819ddcae58b666c21d2a4ef4c88 |
| https://git.kernel.org/stable/c/9b5a333272a48c2f8b30add7a874e46e8b26129c |
