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...

UBUNTU-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...

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...

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...

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 is an out-of-bounds write in the Linux kernel's panasonic-laptop driver (platform/x86). In acpi_pcc_retrieve_biosdata(), a trailing sentinel is written at pcc->sinf[hkey->package.count], but when a DSDT's SINF package count equals SQTY+1 (a known off-by-one hardware quirk han...