| 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-2022-49508: HID: elan: Fix potential double free in elan_input_configured |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| HID: elan: Fix potential double free in elan_input_configured |
| |
| 'input' is a managed resource allocated with devm_input_allocate_device(), |
| so there is no need to call input_free_device() explicitly or |
| there will be a double free. |
| |
| According to the doc of devm_input_allocate_device(): |
| * Managed input devices do not need to be explicitly unregistered or |
| * freed as it will be done automatically when owner device unbinds from |
| * its driver (or binding fails). |
| |
| The Linux kernel CVE team has assigned CVE-2022-49508 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 4.19.247 with commit c92ec22a991778a096342cf1a917ae36c5c86a90 |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 5.4.198 with commit f1d4f19a796551edc6679a681ea1756b8c578c08 |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 5.10.121 with commit 6d0726725c7c560495f5ff364862a2cefea542e3 |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 5.15.46 with commit 24f9dfdaece9bd75bb8dbfdba83eddeefdf7dc47 |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 5.17.14 with commit 5291451851feeb66fd4bf0826710f482f3b1ab38 |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 5.18.3 with commit 8bb1716507ebf12d50bbf181764481de3b6bc7fd |
| Issue introduced in 4.17 with commit 9a6a4193d65b853020ef0e66cecdf9e64a863883 and fixed in 5.19 with commit 1af20714fedad238362571620be0bd690ded05b6 |
| |
| 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-2022-49508 |
| 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/hid/hid-elan.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/c92ec22a991778a096342cf1a917ae36c5c86a90 |
| https://git.kernel.org/stable/c/f1d4f19a796551edc6679a681ea1756b8c578c08 |
| https://git.kernel.org/stable/c/6d0726725c7c560495f5ff364862a2cefea542e3 |
| https://git.kernel.org/stable/c/24f9dfdaece9bd75bb8dbfdba83eddeefdf7dc47 |
| https://git.kernel.org/stable/c/5291451851feeb66fd4bf0826710f482f3b1ab38 |
| https://git.kernel.org/stable/c/8bb1716507ebf12d50bbf181764481de3b6bc7fd |
| https://git.kernel.org/stable/c/1af20714fedad238362571620be0bd690ded05b6 |
