| 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-2023-52690: powerpc/powernv: Add a null pointer check to scom_debug_init_one() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| powerpc/powernv: Add a null pointer check to scom_debug_init_one() |
| |
| kasprintf() returns a pointer to dynamically allocated memory |
| which can be NULL upon failure. |
| Add a null pointer check, and release 'ent' to avoid memory leaks. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52690 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 5.4.268 with commit f84c1446daa552e9699da8d1f8375eac0f65edc7 |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 5.10.209 with commit 1eefa93faf69188540b08b024794fa90b1d82e8b |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 5.15.148 with commit 2a82c4439b903639e0a1f21990cd399fb0a49c19 |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 6.1.75 with commit ed8d023cfa97b559db58c0e1afdd2eec7a83d8f2 |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 6.6.14 with commit dd8422ff271c22058560832fc3006324ded895a9 |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 6.7.2 with commit a9c05cbb6644a2103c75b6906e9dafb9981ebd13 |
| Issue introduced in 5.4 with commit bfd2f0d49aef8abfe6bf58f12719f39912993cc6 and fixed in 6.8 with commit 9a260f2dd827bbc82cc60eb4f4d8c22707d80742 |
| |
| 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-2023-52690 |
| 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: |
| arch/powerpc/platforms/powernv/opal-xscom.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/f84c1446daa552e9699da8d1f8375eac0f65edc7 |
| https://git.kernel.org/stable/c/1eefa93faf69188540b08b024794fa90b1d82e8b |
| https://git.kernel.org/stable/c/2a82c4439b903639e0a1f21990cd399fb0a49c19 |
| https://git.kernel.org/stable/c/ed8d023cfa97b559db58c0e1afdd2eec7a83d8f2 |
| https://git.kernel.org/stable/c/dd8422ff271c22058560832fc3006324ded895a9 |
| https://git.kernel.org/stable/c/a9c05cbb6644a2103c75b6906e9dafb9981ebd13 |
| https://git.kernel.org/stable/c/9a260f2dd827bbc82cc60eb4f4d8c22707d80742 |
