Description
The acpi_ns_evaluate() function in drivers/acpi/acpica/nseval.c in the Linux kernel through 4.12.9 does not flush the operand cache and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://usn.ubuntu.com/3696-1/ ↗
- https://usn.ubuntu.com/3762-1/ ↗
- http://www.securityfocus.com/bid/100497 ↗
- https://usn.ubuntu.com/3762-2/ ↗
- https://usn.ubuntu.com/3696-2/ ↗
- https://github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5 ↗
- https://patchwork.kernel.org/patch/9850567/ ↗