| 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-2022-49472: net: phy: micrel: Allow probing without .driver_data |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: phy: micrel: Allow probing without .driver_data |
| |
| Currently, if the .probe element is present in the phy_driver structure |
| and the .driver_data is not, a NULL pointer dereference happens. |
| |
| Allow passing .probe without .driver_data by inserting NULL checks |
| for priv->type. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49472 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.14.283 with commit 7dcb404662839a4ed1a9703658fee979eb894ca4 |
| Fixed in 4.19.247 with commit 91e720b32cba25fa58eaa4c88fe957009cffe9f3 |
| Fixed in 5.4.198 with commit 1e5fbfc2a6f384e3195446c14bbd3bc298eb88c2 |
| Fixed in 5.10.121 with commit abb5594ae2ba7b82cce85917cc6337ec5d774837 |
| Fixed in 5.15.46 with commit 660dfa033ccc9afb032015b6dc76e846bba42cfb |
| Fixed in 5.17.14 with commit 143878e18001c5a61fcc7ae5c5240323753bb641 |
| Fixed in 5.18.3 with commit bd219273b4e004a3f853da72e111fc8f81357501 |
| Fixed in 5.19 with commit f2ef6f7539c68c6bd6c32323d8845ee102b7c450 |
| |
| 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-2022-49472 |
| 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/phy/micrel.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/7dcb404662839a4ed1a9703658fee979eb894ca4 |
| https://git.kernel.org/stable/c/91e720b32cba25fa58eaa4c88fe957009cffe9f3 |
| https://git.kernel.org/stable/c/1e5fbfc2a6f384e3195446c14bbd3bc298eb88c2 |
| https://git.kernel.org/stable/c/abb5594ae2ba7b82cce85917cc6337ec5d774837 |
| https://git.kernel.org/stable/c/660dfa033ccc9afb032015b6dc76e846bba42cfb |
| https://git.kernel.org/stable/c/143878e18001c5a61fcc7ae5c5240323753bb641 |
| https://git.kernel.org/stable/c/bd219273b4e004a3f853da72e111fc8f81357501 |
| https://git.kernel.org/stable/c/f2ef6f7539c68c6bd6c32323d8845ee102b7c450 |
