Ubuntu.comUB:CVE-2023-52693CVE-2023-52693
In the Linux kernel, the following vulnerability has been resolved: ACPI:
video: check for error while searching for backlight device parent If
acpi_get_parent() called in acpi_video_dev_register_backlight() fails, for
example, because acpi_ut_acquire_mutex() fails inside acpi_get_parent),
this can lead to incorrect (uninitialized) acpi_parent handle being passed
to acpi_get_pci_dev() for detecting the parent pci device. Check
acpi_get_parent() result and set parent device only in case of success.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | linux | < 6.5.0-41.41 | UNKNOWN |
| ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
References
git.kernel.org/linus/ccd45faf4973746c4f30ea41eec864e5cf191099 (6.8-rc1)
git.kernel.org/stable/c/1e3a2b9b4039bb4d136dca59fb31e06465e056f3
git.kernel.org/stable/c/2124c5bc22948fc4d09a23db4a8acdccc7d21e95
git.kernel.org/stable/c/39af144b6d01d9b40f52e5d773e653957e6c379c
git.kernel.org/stable/c/3a370502a5681986f9828e43be75ce26c6ab24af
git.kernel.org/stable/c/556f02699d33c1f40b1b31bd25828ce08fa165d8
git.kernel.org/stable/c/72884ce4e10417b1233b614bf134da852df0f15f
git.kernel.org/stable/c/c4e1a0ef0b4782854c9b77a333ca912b392bed2f
git.kernel.org/stable/c/ccd45faf4973746c4f30ea41eec864e5cf191099
launchpad.net/bugs/cve/CVE-2023-52693
nvd.nist.gov/vuln/detail/CVE-2023-52693
security-tracker.debian.org/tracker/CVE-2023-52693
ubuntu.com/security/notices/USN-6818-1
ubuntu.com/security/notices/USN-6818-2
ubuntu.com/security/notices/USN-6818-3
ubuntu.com/security/notices/USN-6819-1
ubuntu.com/security/notices/USN-6819-2
ubuntu.com/security/notices/USN-6819-3
www.cve.org/CVERecord?id=CVE-2023-52693
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