CVE-2024-26710

In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Limit KASAN thread size increase to 32KB KASAN is seen to increase stack usage, to the point that it was reported to lead to stack overflow on some 32-bit machines (see link). To avoid overflows the stack size was doubled for KASAN builds in commit 3e8635fb2e07 ("powerpc/kasan: Force thread size increase with KASAN"). However with a 32KB stack size to begin with, the doubling leads to a 64KB stack, which causes build errors: arch/powerpc/kernel/switch.S:249: Error: operand out of range (0x000000000000fe50 is not between 0xffffffffffff8000 and 0x0000000000007fff) Although the asm could be reworked, in practice a 32KB stack seems sufficient even for KASAN builds - the additional usage seems to be in the 2-3KB range for a 64-bit KASAN build. So only increase the stack for KASAN if the stack size is < 32KB.

The following products are affected by CVE-2024-26710 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-26710.

URL	Resource
https://git.kernel.org/stable/c/4297217bcf1f0948a19c2bacc6b68d92e7778ad9
https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcb
https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbe
https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736
https://git.kernel.org/stable/c/f9a4c401bf4c5af3437ad221c0a5880a518068d4
https://lore.kernel.org/linux-cve-announce/2024040342-CVE-2024-26710-6332@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-26710
https://www.cve.org/CVERecord?id=CVE-2024-26710