CVE-2026-89436

In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix sentinel write past pcc-sinf acpipccretrievebiosdata rejects SINF packages only when pcc-numsifr is strictly less than hkey-package.count, then unconditionally writes a trailing sentinel at...

EUVD-2026-76342

In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix sentinel write past pcc-sinf acpipccretrievebiosdata rejects SINF packages only when pcc-numsifr is strictly less than hkey-package.count, then unconditionally writes a trailing sentinel at...

CVE-2026-89436 platform/x86: panasonic-laptop: Fix sentinel write past pcc->sinf[]

In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix sentinel write past pcc-sinf acpipccretrievebiosdata rejects SINF packages only when pcc-numsifr is strictly less than hkey-package.count, then unconditionally writes a trailing sentinel at...

CVE-2026-89436

CVE-2026-89436 affects the Linux kernel 's platform/x86: panasonic-laptop driver. The root cause is an off-by-one heap overflow : acpi_pcc_retrieve_biosdata() unconditionally writes a trailing sentinel at pcc->sinf[hkey->package.count], but the array is allocated with only pcc->num_sifr ...