| 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-2024-49986: platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors |
| |
| x86_android_tablet_remove() frees the pdevs[] array, so it should not |
| be used after calling x86_android_tablet_remove(). |
| |
| When platform_device_register() fails, store the pdevs[x] PTR_ERR() value |
| into the local ret variable before calling x86_android_tablet_remove() |
| to avoid using pdevs[] after it has been freed. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49986 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.17 with commit 5eba0141206ea521bbcfcf5067c174e825e943dd and fixed in 6.1.118 with commit ba0b09a2f327319e252d8f3032019b958c0a5cd9 |
| Issue introduced in 5.17 with commit 5eba0141206ea521bbcfcf5067c174e825e943dd and fixed in 6.6.55 with commit aac871e493fc8809e60209d9899b1af07e9dbfc8 |
| Issue introduced in 5.17 with commit 5eba0141206ea521bbcfcf5067c174e825e943dd and fixed in 6.10.14 with commit f08adc5177bd4343df09033f62ab562c09ba7f7d |
| Issue introduced in 5.17 with commit 5eba0141206ea521bbcfcf5067c174e825e943dd and fixed in 6.11.3 with commit 73a98cf79e4dbfa3d0c363e826c65aae089b313c |
| Issue introduced in 5.17 with commit 5eba0141206ea521bbcfcf5067c174e825e943dd and fixed in 6.12 with commit 2fae3129c0c08e72b1fe93e61fd8fd203252094a |
| |
| 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-2024-49986 |
| 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/platform/x86/x86-android-tablets/core.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/ba0b09a2f327319e252d8f3032019b958c0a5cd9 |
| https://git.kernel.org/stable/c/aac871e493fc8809e60209d9899b1af07e9dbfc8 |
| https://git.kernel.org/stable/c/f08adc5177bd4343df09033f62ab562c09ba7f7d |
| https://git.kernel.org/stable/c/73a98cf79e4dbfa3d0c363e826c65aae089b313c |
| https://git.kernel.org/stable/c/2fae3129c0c08e72b1fe93e61fd8fd203252094a |
