SUSE CVE-2026-31590

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Drop WARN on large size for KVMMEMORYENCRYPTREGREGION Drop the WARN in sevpinmemory on npages overflowing an int, as the WARN is comically trivially to trigger from userspace, e.g. by doing: struct kvmencregion range =...

SUSE CVE-2026-31591

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as allowing userspace to manipulate and/or run a vCPU while its state is being...

CVE-2026-33662

OP-TEE is a Trusted Execution Environment TEE designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. From 3.8.0 to 4.10, in the function emsapkcs1v15encode in core/drivers/crypto/cryptoapi/acipher/rsassa.c, the amount of padding needed, "...

CVE-2026-33662 OP-TEE: RSASSA EMSA- PKCS1-v1_5 underflow in emsa_pkcs1_v1_5_encode()

OP-TEE is a Trusted Execution Environment TEE designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. From 3.8.0 to 4.10, in the function emsapkcs1v15encode in core/drivers/crypto/cryptoapi/acipher/rsassa.c, the amount of padding needed, "...

GHSA-V638-38FC-RHFV AWS Encryption SDK for Python: Key commitment policy bypass via shared key cache

Summary AWS Encryption SDK ESDK for Python is a client-side encryption library. An issue exists where, under certain circumstances, a specific cryptographic algorithm downgrade in the caching layer might allow an authenticated local threat actor to bypass key commitment policy enforcement via a...

AWS Encryption SDK for Python: Key commitment policy bypass via shared key cache

Summary AWS Encryption SDK ESDK for Python is a client-side encryption library. An issue exists where, under certain circumstances, a specific cryptographic algorithm downgrade in the caching layer might allow an authenticated local threat actor to bypass key commitment policy enforcement via a...

EUVD-2026-23943

AWS Encryption SDK for Python: Key commitment policy bypass via shared key cache...

CVE-2026-31590

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Drop WARN on large size for KVMMEMORYENCRYPTREGREGION Drop the WARN in sevpinmemory on npages overflowing an int, as the WARN is comically trivially to trigger from userspace, e.g. by doing: struct kvmencregion range =...

DEBIAN-CVE-2026-31591

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as allowing userspace to manipulate and/or run a vCPU while its state is being...

CVE-2026-31591

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as allowing userspace to manipulate and/or run a vCPU while its state is being...

AZL-83654 CVE-2026-31590 affecting package kernel for versions less than 6.6.137.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Drop WARN on large size for KVMMEMORYENCRYPTREGREGION Drop the WARN in sevpinmemory on npages overflowing an int, as the WARN is comically trivially to trigger from userspace, e.g. by doing: struct kvmencregion range =...

CVE-2026-31561

In the Linux kernel, the following vulnerability has been resolved: x86/cpu: Remove X86CR4FRED from the CR4 pinned bits mask Commit in Fixes added the FRED CR4 bit to the CR4 pinned bits mask so that whenever something else modifies CR4, that bit remains set. Which in itself is a perfectly fine...

CVE-2026-31543

In the Linux kernel, the following vulnerability has been resolved: crashdump: don't log dm-crypt key bytes in readkeyfromuserkeying When debug logging is enabled, readkeyfromuserkeying logs the first 8 bytes of the key payload and partially exposes the dm-crypt key. Stop logging any key bytes...

CVE-2026-31593

CVE-2026-31593 is a Linux kernel KVM SEV SNP issue. The vulnerability arises when updating an already-launched and encrypted vCPU state: attempting to sync the vCPU's VMSA can trigger an SEV-SNP cryptographic memory protection (RMP) violation, causing a host panic/DoS. Technical details across mu...

CVE-2026-31593 KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU Reject synchronizing vCPU state to its associated VMSA if the vCPU has already been launched, i.e. if the VMSA has already been encrypted. On a host wit...

CVE-2026-31593

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU Reject synchronizing vCPU state to its associated VMSA if the vCPU has already been launched, i.e. if the VMSA has already been encrypted. On a host wit...

CVE-2026-31591

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as allowing userspace to manipulate and/or run a vCPU while its state is being...

CVE-2026-31592

CVE-2026-31592 affects the Linux kernel KVM subsystem. The vulnerability arises when sev_mem_enc_register_region() is not protected by kvm->lock before sev_guest() is checked, risking state corruption if KVM_INIT{2} fails and an uninitialized sev->regions_list is touched, potentially causin...

EUVD-2026-25485

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't stable unless kvm-lock is held or KVM can guarantee KVMSEVINIT2 has...

CVE-2026-31591 KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests, as allowing userspace to manipulate and/or run a vCPU while its state is being...