UBUNTU-CVE-2026-43454

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Fix for duplicate device in netdev hooks When handling NETDEVREGISTER notification, duplicate device registration must be avoided since the device may have been added by nftnetdevhookalloc already when creati...

CVE-2026-43396

In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Fix user fence leak on alloc failure When dmafencechainalloc fails, properly release the user fence reference to prevent a memory leak. cherry picked from commit a5d5634cde48a9fcd68c8504aa07f89f175074a0...

UBUNTU-CVE-2026-43422

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2026-44500 ZEBRA: Allocation Amplification in Inbound Network Deserializers

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0, prior to zebra-chain version 7.0.0, and prior to zebra-network version 6.0.0, several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter...

USN-8248-2: NASM regression

USN-8248-1 fixed vulnerabilities in NASM. Unfortunately the update introduced a regression which could cause NASM to crash. This update fixes the problem by reverting the fix for CVE-2021-33450 and CVE-2021-33452 in Ubuntu 24.04 LTS. We apologize for the inconvenience. Original advisory details:...

CVE-2026-43473 scsi: mpi3mr: Add NULL checks when resetting request and reply queues

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Add NULL checks when resetting request and reply queues The driver encountered a crash during resource cleanup when the reply and request queues were NULL due to freed memory. This issue occurred when the creation o...

CVE-2026-43472 unshare: fix unshare_fs() handling

In the Linux kernel, the following vulnerability has been resolved: unshare: fix unsharefs handling There's an unpleasant corner case in unshare2, when we have a CLONENEWNS in flags and current-fs hadn't been shared at all; in that case copymntns gets passed current-fs instead of a private copy,...

CVE-2026-43472 unshare: fix unshare_fs() handling

In the Linux kernel, the following vulnerability has been resolved: unshare: fix unsharefs handling There's an unpleasant corner case in unshare2, when we have a CLONENEWNS in flags and current-fs hadn't been shared at all; in that case copymntns gets passed current-fs instead of a private copy,...

CVE-2026-43469 xprtrdma: Decrement re_receiving on the early exit paths

In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Decrement rereceiving on the early exit paths In the event that rpcrdmapostrecvs fails to create a work request due to memory allocation failure, say or otherwise exits early, we should decrement ep-rereceiving before...

CVE-2026-43463

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpckernellookuppeer rxrpckernellookuppeer can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: 1 Changing...

CVE-2026-43463

Summary: Multiple sources confirm a Linux kernel vulnerability in rxrpc and afs where rxrpc_kernel_lookup_peer() could return error pointers in addition to NULL, risking instability. The fix changes rxrpc_kernel_lookup_peer() to return -ENOMEM on allocation failure (instead of NULL) and updates c...

CVE-2026-43463 rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpckernellookuppeer rxrpckernellookuppeer can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: 1 Changing...

CVE-2026-43463 rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpckernellookuppeer rxrpckernellookuppeer can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: 1 Changing...

CVE-2026-43422

The CVE-2026-43422 entry concerns the Linux kernel USB legacy NCM driver. The vulnerability stems from deferred net_device allocation in gncm_bind, where a NULL pointer dereference could occur when accessing the net_device before it is fully instantiated. The fix, described in the connected repor...

CVE-2026-43422

In the Linux kernel, the following vulnerability has been resolved: usb: legacy: ncm: Fix NPE in gncmbind Commit 56a512a9b410 "usb: gadget: fncm: align netdevice lifecycle with bind/unbind" deferred the allocation of the netdevice. This change leads to a NULL pointer dereference in the legacy NCM...

CVE-2026-43422 usb: legacy: ncm: Fix NPE in gncm_bind

In the Linux kernel, the following vulnerability has been resolved: usb: legacy: ncm: Fix NPE in gncmbind Commit 56a512a9b410 "usb: gadget: fncm: align netdevice lifecycle with bind/unbind" deferred the allocation of the netdevice. This change leads to a NULL pointer dereference in the legacy NCM...

CVE-2026-43405 libceph: Use u32 for non-negative values in ceph_monmap_decode()

In the Linux kernel, the following vulnerability has been resolved: libceph: Use u32 for non-negative values in cephmonmapdecode This patch fixes unnecessary implicit conversions that change signedness of bloblen and nummon in cephmonmapdecode. Currently bloblen and nummon are signed int variable...

CVE-2026-43405 libceph: Use u32 for non-negative values in ceph_monmap_decode()

In the Linux kernel, the following vulnerability has been resolved: libceph: Use u32 for non-negative values in cephmonmapdecode This patch fixes unnecessary implicit conversions that change signedness of bloblen and nummon in cephmonmapdecode. Currently bloblen and nummon are signed int variable...

CVE-2026-43405

CVE-2026-43405 affects the Linux kernel libceph component, specifically ceph_monmap_decode(). The root cause is signedness mishandling: blob_len and num_mon are int, used to hold non-negative values that should be unsigned, leading to potential large allocations when an incoming num_mon is very l...

CVE-2026-43396

In the Linux kernel, the vulnerability CVE-2026-43396 is in the drm/xe/sync path. When dma_fence_chain_alloc() fails, the user fence reference is not released, causing a memory leak. Documented across multiple sources (Red Hat, SUSE, Ubuntu, Debian OSV entries, and NVD), the issue is fixed by the...