| 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-2024-56776: drm/sti: avoid potential dereference of error pointers |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/sti: avoid potential dereference of error pointers |
| |
| The return value of drm_atomic_get_crtc_state() needs to be |
| checked. To avoid use of error pointer 'crtc_state' in case |
| of the failure. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56776 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.6 with commit dd86dc2f9ae1102f46115be1f1422265c15540f1 and fixed in 5.15.174 with commit e98ff67f5a68114804607de549c2350d27628fc7 |
| Issue introduced in 4.6 with commit dd86dc2f9ae1102f46115be1f1422265c15540f1 and fixed in 6.1.120 with commit 40725c5fabee804fecce41d4d5c5bae80c45e1c4 |
| Issue introduced in 4.6 with commit dd86dc2f9ae1102f46115be1f1422265c15540f1 and fixed in 6.6.64 with commit 8ab73ac97c0fa528f66eeccd9bb53eb6eb7d20dc |
| Issue introduced in 4.6 with commit dd86dc2f9ae1102f46115be1f1422265c15540f1 and fixed in 6.12.4 with commit f67786293193cf01ebcc6fdbcbd1587b24f52679 |
| Issue introduced in 4.6 with commit dd86dc2f9ae1102f46115be1f1422265c15540f1 and fixed in 6.13 with commit 831214f77037de02afc287eae93ce97f218d8c04 |
| |
| 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-2024-56776 |
| 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/gpu/drm/sti/sti_cursor.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/e98ff67f5a68114804607de549c2350d27628fc7 |
| https://git.kernel.org/stable/c/40725c5fabee804fecce41d4d5c5bae80c45e1c4 |
| https://git.kernel.org/stable/c/8ab73ac97c0fa528f66eeccd9bb53eb6eb7d20dc |
| https://git.kernel.org/stable/c/f67786293193cf01ebcc6fdbcbd1587b24f52679 |
| https://git.kernel.org/stable/c/831214f77037de02afc287eae93ce97f218d8c04 |
