POC_CVE-2025-29943_Write-what-where-Condition

StackWarp: PoC for CVE-2025-29943 Prueba de concepto para la vulnerabilidad de hardware StackWarp CVE-2025-29943 en procesadores AMD. Esta falla permite a un atacante con privilegios de administrador en un host hipervisor manipular la configuración de la canalización de la CPU para corromper el...

cve-2023-46813-poc

CVE-2023-46813 PoC 1. Apply the patches in the host-patches folder to the Linux host and QEMU. 2. Start an SEV-SNP VM. 3. Run the code in this repo and wait for the message "waiting for the hypervisor to change memory to MMIO". 4. Spam the attack command in QEMU several times. 5. Once the exploit...

igvm

igvm This project is the home of the Independent Guest Virtual Machine IGVM file format. The format specification can be found in the igvmdefs crate, with a Rust implementation of the binary format in the igvm crate. The IGVM file format is designed to encapsulate all information required to laun...

CVE-2026-80651

A flaw was found in the Linux kernel's crypto: ccp/sev-dev-tsm module. The dsmcreate function fails to properly validate the pdev-bus pointer, leading to a null pointer dereference. A local attacker could exploit this vulnerability to trigger a kernel crash, resulting in a Denial of Service DoS...

CVE-2026-53360-POC

CVE-2026-53360: KVM SEV-SNP PSC heap out-of-bounds Proof of concept for a heap out-of-bounds read and write in KVM's SEV-SNP Page State Change PSC handling. A malicious SEV-SNP guest makes the host kernel walk a PSC entry array off the end of its slab allocation. That leaks the layout of...

Linux Distros Unpatched Vulnerability : CVE-2026-80652

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to...

Linux Distros Unpatched Vulnerability : CVE-2026-80651

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp/sev-dev-tsm - bail out early when pdev-bus is NULL dsmcreate initially checks pdev-bus when computing segmentid: u8 segmentid = pdev-bus ?...

UBUNTU-CVE-2026-80651

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp/sev-dev-tsm - bail out early when pdev-bus is NULL dsmcreate initially checks pdev-bus when computing segmentid: u8 segmentid = pdev-bus ? pcidomainnrpdev-bus : 0; But the next two lines unconditionally dereference...

UBUNTU-CVE-2026-80652

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

CVE-2026-80651

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp/sev-dev-tsm - bail out early when pdev-bus is NULL dsmcreate initially checks pdev-bus when computing segmentid: u8 segmentid = pdev-bus ? pcidomainnrpdev-bus : 0; But the next two lines unconditionally dereference...

CVE-2026-80652

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

cve-2024-21980-poc

Vulnerabilità del firmware SEV Questo repository contiene un exploit per una vulnerabilità nel firmware SEV. L'exploit consente di decrittare memoria arbitraria di un guest SEV-SNP dopo che è stato dismesso. Testato sulla versione 1.55.16 l'ultima al momento della scrittura. Causa principale Il...

cve-2024-21978-poc

Schwachstelle in der SEV-Firmware Dieses Repository enthält einen Exploit für eine Schwachstelle in der SEV-Firmware. Der Exploit ermöglicht es, beliebigen Speicher eines laufenden SEV-SNP-Gasts zu entschlüsseln. Getestet mit Version 1.55.16 zum Zeitpunkt des Schreibens die neueste. Grundursache...

cve-2023-31355-poc

Vulnerabilità del firmware SEV Questo repository contiene un exploit per una vulnerabilità nel firmware SEV. L'exploit consente di decrittare memoria arbitraria di un guest SEV-SNP dopo che è stato decommissionato. Testato sulla versione 1.55.16 la più recente al momento della stesura. Causa...

cve-2023-31346-poc

Perdita di memoria del firmware Il codice qui mira a dimostrare le perdite di memoria negli header dei messaggi guest e nel messaggio guest della richiesta CPUID. Prerequisiti Installare rustup. Installare un kernel Linux con supporto host SEV-SNP. Ho usato un kernel con alcune mie patch...

cve-2023-20573-poc

Utilizzo del PoC Questa repository contiene un VMM che avvia un guest SEV-SNP con un kernel personalizzato. Il VMM e il kernel sono una versione ridotta di un mio progetto. Per l'esecuzione sull'host è richiesto un kernel Linux modificato: https://github.com/Freax13/linux/tree/for-amd. La Proof o...

CVE-2026-80652 crypto: ccp - Treat zero-length cert chain as query for blob lengths

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

CVE-2026-80652

CVE-2026-80652 affects the Linux kernel 's AMD SEV/CCP driver (drivers/crypto/ccp/sev-dev.c ). When handling a PDH export, a zero-length userspace cert chain buffer is not treated as a blob-length query, causing a BUG_ON() crash at arch/x86/mm/physaddr.c due to a physical-address lookup on ZERO_S...

EUVD-2026-67527

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp/sev-dev-tsm - bail out early when pdev-bus is NULL dsmcreate initially checks pdev-bus when computing segmentid: u8 segmentid = pdev-bus ? pcidomainnrpdev-bus : 0; But the next two lines unconditionally dereference...

CVE-2026-80651

CVE-2026-80651 is a NULL pointer dereference in the Linux kernel's drivers/crypto/ccp/sev-dev-tsm.c , specifically in the dsm_create() function. The function checks whether pdev->bus is NULL when computing segment_id, but immediately afterward unconditionally dereferences pdev->bus via pcie...