| 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-2024-41024: misc: fastrpc: Restrict untrusted app to attach to privileged PD |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| misc: fastrpc: Restrict untrusted app to attach to privileged PD |
| |
| Untrusted application with access to only non-secure fastrpc device |
| node can attach to root_pd or static PDs if it can make the respective |
| init request. This can cause problems as the untrusted application |
| can send bad requests to root_pd or static PDs. Add changes to reject |
| attach to privileged PDs if the request is being made using non-secure |
| fastrpc device node. |
| |
| The Linux kernel CVE team has assigned CVE-2024-41024 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit 0871561055e666da421d779397efcc1e5e964cab and fixed in 6.6.41 with commit 5e305b5986dc52122a9368a1461f0c13e1de3fd6 |
| Issue introduced in 6.2 with commit 0871561055e666da421d779397efcc1e5e964cab and fixed in 6.6.48 with commit ea13bd807f1cef1af375d999980a9b9794c789b6 |
| Issue introduced in 6.2 with commit 0871561055e666da421d779397efcc1e5e964cab and fixed in 6.9.10 with commit c69fd8afacebfdf2f8a1ee1ea7e0723786529874 |
| Issue introduced in 6.2 with commit 0871561055e666da421d779397efcc1e5e964cab and fixed in 6.10 with commit bab2f5e8fd5d2f759db26b78d9db57412888f187 |
| Issue introduced in 6.2 with commit 0871561055e666da421d779397efcc1e5e964cab and fixed in 6.10.7 with commit 2eb973ee4770a26d9b5e292b58ad29822d321c7f |
| |
| 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-2024-41024 |
| 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/misc/fastrpc.c |
| include/uapi/misc/fastrpc.h |
| |
| |
| 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/5e305b5986dc52122a9368a1461f0c13e1de3fd6 |
| https://git.kernel.org/stable/c/ea13bd807f1cef1af375d999980a9b9794c789b6 |
| https://git.kernel.org/stable/c/c69fd8afacebfdf2f8a1ee1ea7e0723786529874 |
| https://git.kernel.org/stable/c/bab2f5e8fd5d2f759db26b78d9db57412888f187 |
| https://git.kernel.org/stable/c/2eb973ee4770a26d9b5e292b58ad29822d321c7f |
