| 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-2023-52840: Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() |
| |
| The put_device() calls rmi_release_function() which frees "fn" so the |
| dereference on the next line "fn->num_of_irqs" is a use after free. |
| Move the put_device() to the end to fix this. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52840 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 4.19.299 with commit 2f236d8638f5b43e0c72919a6a27fe286c32053f |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 5.4.261 with commit 50d12253666195a14c6cd2b81c376e2dbeedbdff |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 5.10.201 with commit 6c71e065befb2fae8f1461559b940c04e1071bd5 |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 5.15.139 with commit 303766bb92c5c225cf40f9bbbe7e29749406e2f2 |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 6.1.63 with commit 7082b1fb5321037bc11ba1cf2d7ed23c6b2b521f |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 6.5.12 with commit cc56c4d17721dcb10ad4e9c9266e449be1462683 |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 6.6.2 with commit c8e639f5743cf4b01f8c65e0df075fe4d782b585 |
| Issue introduced in 4.18 with commit 24d28e4f1271cb2f91613dada8f2acccd00eff56 and fixed in 6.7 with commit eb988e46da2e4eae89f5337e047ce372fe33d5b1 |
| |
| 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-2023-52840 |
| 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/input/rmi4/rmi_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/2f236d8638f5b43e0c72919a6a27fe286c32053f |
| https://git.kernel.org/stable/c/50d12253666195a14c6cd2b81c376e2dbeedbdff |
| https://git.kernel.org/stable/c/6c71e065befb2fae8f1461559b940c04e1071bd5 |
| https://git.kernel.org/stable/c/303766bb92c5c225cf40f9bbbe7e29749406e2f2 |
| https://git.kernel.org/stable/c/7082b1fb5321037bc11ba1cf2d7ed23c6b2b521f |
| https://git.kernel.org/stable/c/cc56c4d17721dcb10ad4e9c9266e449be1462683 |
| https://git.kernel.org/stable/c/c8e639f5743cf4b01f8c65e0df075fe4d782b585 |
| https://git.kernel.org/stable/c/eb988e46da2e4eae89f5337e047ce372fe33d5b1 |
