| 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-2022-49385: driver: base: fix UAF when driver_attach failed |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| driver: base: fix UAF when driver_attach failed |
| |
| When driver_attach(drv); failed, the driver_private will be freed. |
| But it has been added to the bus, which caused a UAF. |
| |
| To fix it, we need to delete it from the bus when failed. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49385 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.9 with commit 190888ac01d059e38ffe77a2291d44cafa9016fb and fixed in 5.4.198 with commit 5d709f58c743166fe1c6914b9de0ae8868600d9b |
| Issue introduced in 3.9 with commit 190888ac01d059e38ffe77a2291d44cafa9016fb and fixed in 5.10.122 with commit 823f24f2e329babd0330200d0b74882516fe57f4 |
| Issue introduced in 3.9 with commit 190888ac01d059e38ffe77a2291d44cafa9016fb and fixed in 5.15.47 with commit cdf1a683a01583bca4b618dd16223cbd6e462e21 |
| Issue introduced in 3.9 with commit 190888ac01d059e38ffe77a2291d44cafa9016fb and fixed in 5.17.15 with commit 5389101257828d1913d713d9a40acbe14f5961df |
| Issue introduced in 3.9 with commit 190888ac01d059e38ffe77a2291d44cafa9016fb and fixed in 5.18.4 with commit c059665c84feab46b7173d3a1bf36c2fb7f9df86 |
| Issue introduced in 3.9 with commit 190888ac01d059e38ffe77a2291d44cafa9016fb and fixed in 5.19 with commit 310862e574001a97ad02272bac0fd13f75f42a27 |
| |
| 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-2022-49385 |
| 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/base/bus.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/5d709f58c743166fe1c6914b9de0ae8868600d9b |
| https://git.kernel.org/stable/c/823f24f2e329babd0330200d0b74882516fe57f4 |
| https://git.kernel.org/stable/c/cdf1a683a01583bca4b618dd16223cbd6e462e21 |
| https://git.kernel.org/stable/c/5389101257828d1913d713d9a40acbe14f5961df |
| https://git.kernel.org/stable/c/c059665c84feab46b7173d3a1bf36c2fb7f9df86 |
| https://git.kernel.org/stable/c/310862e574001a97ad02272bac0fd13f75f42a27 |
