| 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-2023-52686: powerpc/powernv: Add a null pointer check in opal_event_init() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| powerpc/powernv: Add a null pointer check in opal_event_init() |
| |
| kasprintf() returns a pointer to dynamically allocated memory |
| which can be NULL upon failure. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52686 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 4.19.306 with commit 8422d179cf46889c15ceff9ede48c5bfa4e7f0b4 |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 5.4.268 with commit e93d7cf4c1ddbcd846739e7ad849f955a4f18031 |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 5.10.209 with commit e6ad05e3ae9c84c5a71d7bb2d44dc845ae7990cf |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 5.15.148 with commit c0b111ea786ddcc8be0682612830796ece9436c7 |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 6.1.75 with commit 9a523e1da6d88c2034f946adfa4f74b236c95ca9 |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 6.6.14 with commit a14c55eb461d630b836f80591d8caf1f74e62877 |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 6.7.2 with commit e08c2e275fa1874de945b87093f925997722ee42 |
| Issue introduced in 4.11 with commit 2717a33d60745f2f72e521cdaedf79b00f66f8ca and fixed in 6.8 with commit 8649829a1dd25199bbf557b2621cedb4bf9b3050 |
| |
| 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-2023-52686 |
| 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-irqchip.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/8422d179cf46889c15ceff9ede48c5bfa4e7f0b4 |
| https://git.kernel.org/stable/c/e93d7cf4c1ddbcd846739e7ad849f955a4f18031 |
| https://git.kernel.org/stable/c/e6ad05e3ae9c84c5a71d7bb2d44dc845ae7990cf |
| https://git.kernel.org/stable/c/c0b111ea786ddcc8be0682612830796ece9436c7 |
| https://git.kernel.org/stable/c/9a523e1da6d88c2034f946adfa4f74b236c95ca9 |
| https://git.kernel.org/stable/c/a14c55eb461d630b836f80591d8caf1f74e62877 |
| https://git.kernel.org/stable/c/e08c2e275fa1874de945b87093f925997722ee42 |
| https://git.kernel.org/stable/c/8649829a1dd25199bbf557b2621cedb4bf9b3050 |
