| 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-2024-58016: safesetid: check size of policy writes |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| safesetid: check size of policy writes |
| |
| syzbot attempts to write a buffer with a large size to a sysfs entry |
| with writes handled by handle_policy_update(), triggering a warning |
| in kmalloc. |
| |
| Check the size specified for write buffers before allocating. |
| |
| [PM: subject tweak] |
| |
| The Linux kernel CVE team has assigned CVE-2024-58016 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 5.10.235 with commit 976284b94f2021df09829e37a367e19b84d9e5f3 |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 5.15.179 with commit ecf6a4a558097920447a6fb84dfdb279e2ac749a |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 6.1.129 with commit a0dec65f88c8d9290dfa1d2ca1e897abe54c5881 |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 6.6.78 with commit 96fae5bd1589731592d30b3953a90a77ef3928a6 |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 6.12.14 with commit 36b385d0f2b4c0bf41d491e19075ecd990d2bf94 |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 6.13.3 with commit c71d35676d46090c891b6419f253fb92a1a9f4eb |
| Issue introduced in 5.1 with commit aeca4e2ca65c1aeacfbe520684e6421719d99417 and fixed in 6.14 with commit f09ff307c7299392f1c88f763299e24bc99811c7 |
| |
| 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-2024-58016 |
| 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: |
| security/safesetid/securityfs.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/976284b94f2021df09829e37a367e19b84d9e5f3 |
| https://git.kernel.org/stable/c/ecf6a4a558097920447a6fb84dfdb279e2ac749a |
| https://git.kernel.org/stable/c/a0dec65f88c8d9290dfa1d2ca1e897abe54c5881 |
| https://git.kernel.org/stable/c/96fae5bd1589731592d30b3953a90a77ef3928a6 |
| https://git.kernel.org/stable/c/36b385d0f2b4c0bf41d491e19075ecd990d2bf94 |
| https://git.kernel.org/stable/c/c71d35676d46090c891b6419f253fb92a1a9f4eb |
| https://git.kernel.org/stable/c/f09ff307c7299392f1c88f763299e24bc99811c7 |
