CVE-2026-44324 free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/ueId/servingPlmnId/ee-subscriptions/subsId/amf-subscriptions handler panics on a single authenticated request against a fresh UDR instance when the supplied ueId does n...

CVE-2026-44328

Summary: CVE-2026-44328 affects free5GC SMF 4.2.1 and is fixed in 4.2.2 via upstream patch PR#199. The SMBI UPI route group was left without inbound OAuth2 middleware, allowing unauthenticated access to delete endpoints. The DELETE /upi/v1/upNodesLinks/{upNodeRef} handler unconditionally derefere...

EUVD-2026-32283

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

EUVD-2026-32252

In the Linux kernel, the following vulnerability has been resolved: cpuidle: Skip governor when only one idle state is available On certain platforms PowerNV systems without a power-mgt DT node, cpuidle may register only a single idle state. In cases where that single state is a polling state sta...

EUVD-2026-32361

In the Linux kernel, the following vulnerability has been resolved: quota: fix livelock between quotactl and freezesuper When a filesystem is frozen, quotactlblock enters a retry loop waiting for the filesystem to thaw. It acquires sumount, checks the freeze state, drops sumount and uses...

CVE-2026-46095

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: raise barrier before state machine transition Move the barrier raise operation before calling llbitmapstatemachine in both llbitmapstartwrite and llbitmapstartdiscard. This ensures the barrier is in place before a...

CVE-2026-46028

In the Linux kernel, the following vulnerability has been resolved: crypto: algifaead - snapshot IV for async AEAD requests AFALG AEAD AIO requests currently use the socket-wide IV buffer during request processing. For async requests, later socket activity can update that shared state before the...

CVE-2026-46027

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoid early lgr access in smcclcwaitmsg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smcclcwaitmsg...

CVE-2026-46014

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Add missing save/restore handling of LBR MSRs MSRIA32DEBUGCTLMSR and LBR MSRs are currently not enumerated by KVMGETMSRINDEXLIST, and LBR MSRs cannot be set with KVMSETMSRS. So save/restore is completely broken. Fix it ...

CVE-2026-45987

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

CVE-2026-45968

In the Linux kernel, the following vulnerability has been resolved: cpuidle: Skip governor when only one idle state is available On certain platforms PowerNV systems without a power-mgt DT node, cpuidle may register only a single idle state. In cases where that single state is a polling state sta...

CVE-2026-45895

In the Linux kernel, the following vulnerability has been resolved: quota: fix livelock between quotactl and freezesuper When a filesystem is frozen, quotactlblock enters a retry loop waiting for the filesystem to thaw. It acquires sumount, checks the freeze state, drops sumount and uses...

UBUNTU-CVE-2026-46027

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoid early lgr access in smcclcwaitmsg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smcclcwaitmsg...

UBUNTU-CVE-2026-46032

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Triple fault if restore host CR3 fails on nested VMEXIT If loading L1's CR3 fails on a nested VMEXIT, nestedsvmvmexit returns an error code that is ignored by most callers, and continues to run L1 with corrupted state....

UBUNTU-CVE-2026-46065

In the Linux kernel, the following vulnerability has been resolved: fbdev: defio: Disconnect deferred I/O from the lifetime of struct fbinfo Hold state of deferred I/O in struct fbdeferrediostate. Allocate an instance as part of initializing deferred I/O and remove it only after the final mapping...

UBUNTU-CVE-2026-45895

In the Linux kernel, the following vulnerability has been resolved: quota: fix livelock between quotactl and freezesuper When a filesystem is frozen, quotactlblock enters a retry loop waiting for the filesystem to thaw. It acquires sumount, checks the freeze state, drops sumount and uses...

UBUNTU-CVE-2026-45987

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

UBUNTU-CVE-2026-45968

In the Linux kernel, the following vulnerability has been resolved: cpuidle: Skip governor when only one idle state is available On certain platforms PowerNV systems without a power-mgt DT node, cpuidle may register only a single idle state. In cases where that single state is a polling state sta...

UBUNTU-CVE-2026-46042

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: fix memory leaks in weightedinterleaveautostore weightedinterleaveautostore fetches oldwistate inside the if !input block only. This causes two memory leaks: 1. When a user writes "false" and the current mode is...

UBUNTU-CVE-2026-46057

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix LOGSUBDOMAINSOFF inheritance across fork hookcredtransfer only copies the Landlock security blob when the source credential has a domain. This is inconsistent with landlockrestrictself which can set LOGSUBDOMAINSOFF...