UBUNTU-CVE-2026-72034

In the Linux kernel, the following vulnerability has been resolved: fhandle: reject detached mounts in capablewrtmount The recent fhandle RCU fix moved the mount namespace capability check into capablewrtmount, so a non-NULL mntnamespace survives the nscapable dereference. The helper still assume...

UBUNTU-CVE-2026-72254

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftfib: reject fib expression on the netdev egress hook A fib expression in a netdev egress base chain dereferences nftinpkt, NULL on the transmit path, causing a NULL pointer dereference at eval. nftfibvalidate masks...

CVE-2026-72008

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check Should probe fail for HWVOTER type power domains, this driver was unconditionally trying to perform cleanup for DIRECTCTL domains, but only after checking if the...

CVE-2026-68476

In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation ipvsgetoutrt calls skbensurewritable which may reallocate skb-head...

UBUNTU-CVE-2026-72008

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: Fix possible nullptr KP in HWV cleanup/on-check Should probe fail for HWVOTER type power domains, this driver was unconditionally trying to perform cleanup for DIRECTCTL domains, but only after checking if the...

EUVD-2026-59582

In the Linux kernel, the following vulnerability has been resolved: rxrpc: rxrpcverifydata ensure rxdecbuffer alloc rxrpcrecvmsgdata calls rxrpcverifydata whenever the rxrpccall.rxdecbuffer is unallocated and assumes that upon successful return that rxdecbuffer must be allocated. However,...

CVE-2026-74435

Summary (CVE-2026-74435) : In the Linux kernel, a fix was applied to rxrpc_verify_data and related code paths (rxrpc_recvmsg_data) to ensure rxdec_buffer is allocated when rx_dec_buffer is NULL. Previously, rxrpc_verify_data could return without allocating the buffer if rxrpc_skb_priv.len was zer...

CVE-2026-74435 rxrpc: rxrpc_verify_data ensure rx_dec_buffer alloc

In the Linux kernel, the following vulnerability has been resolved: rxrpc: rxrpcverifydata ensure rxdecbuffer alloc rxrpcrecvmsgdata calls rxrpcverifydata whenever the rxrpccall.rxdecbuffer is unallocated and assumes that upon successful return that rxdecbuffer must be allocated. However,...

CVE-2026-74435 rxrpc: rxrpc_verify_data ensure rx_dec_buffer alloc

In the Linux kernel, the following vulnerability has been resolved: rxrpc: rxrpcverifydata ensure rxdecbuffer alloc rxrpcrecvmsgdata calls rxrpcverifydata whenever the rxrpccall.rxdecbuffer is unallocated and assumes that upon successful return that rxdecbuffer must be allocated. However,...

EUVD-2026-59577

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix ACKALL packet handling rxrpcinputackall accepts ACKALL packets without checking whether the call is in a state that can legitimately have outstanding transmit buffers. A forged ACKALL can therefore reach a new service...

CVE-2026-74430 rxrpc: Fix ACKALL packet handling

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix ACKALL packet handling rxrpcinputackall accepts ACKALL packets without checking whether the call is in a state that can legitimately have outstanding transmit buffers. A forged ACKALL can therefore reach a new service...

CVE-2026-74429 rxrpc: Fix the reception of a reply packet before data transmission

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix the reception of a reply packet before data transmission Fix rxrpcreceivingreply to handle the reception of an apparent reply DATA packet before rxrpc has had a chance to send any request DATA packets on a client call ...

CVE-2026-74430 rxrpc: Fix ACKALL packet handling

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix ACKALL packet handling rxrpcinputackall accepts ACKALL packets without checking whether the call is in a state that can legitimately have outstanding transmit buffers. A forged ACKALL can therefore reach a new service...

CVE-2026-74430

The CVE-2026-74430 issue affects the Linux kernel’s rxrpc ACKALL handling. It allowed a forged ACKALL to reach a new service call before replies were queued, risking a null-pointer dereference when rxrpc_rotate_tx_window() dereferenced a NULL txqueue (call->tx_top was zero). The fix adds two c...

CVE-2026-74426 afs: fix NULL pointer dereference in afs_get_tree()

In the Linux kernel, the following vulnerability has been resolved: afs: fix NULL pointer dereference in afsgettree afsallocsbi uses kzalloc for memory allocation. And, if ctx-dynroot is not null, as-cell and as-volume are null. In traceafsgettree they are dereferenced. KASAN error message: KASAN...

EUVD-2026-59573

In the Linux kernel, the following vulnerability has been resolved: afs: fix NULL pointer dereference in afsgettree afsallocsbi uses kzalloc for memory allocation. And, if ctx-dynroot is not null, as-cell and as-volume are null. In traceafsgettree they are dereferenced. KASAN error message: KASAN...

CVE-2026-74426 afs: fix NULL pointer dereference in afs_get_tree()

In the Linux kernel, the following vulnerability has been resolved: afs: fix NULL pointer dereference in afsgettree afsallocsbi uses kzalloc for memory allocation. And, if ctx-dynroot is not null, as-cell and as-volume are null. In traceafsgettree they are dereferenced. KASAN error message: KASAN...

CVE-2026-74426

CVE-2026-74426 (Linux kernel) : A NULL pointer dereference in the AFS filesystem during afs_get_tree() was fixed. The root cause involved afs_alloc_sbi() using kzalloc and, if ctx->dyn_root is non-null, as->cell and as->volume being null, leading to dereferencing these fields in trace_af...

CVE-2026-74425 afs: handle CB.InitCallBackState3 requests without a server record

In the Linux kernel, the following vulnerability has been resolved: afs: handle CB.InitCallBackState3 requests without a server record The cache manager callback path now attaches the server record to an incoming call through the rxrpc peer's app data. That association is not guaranteed to exist...

CVE-2026-74424 fbcon: fix NULL pointer dereference for a console without vc_data

In the Linux kernel, the following vulnerability has been resolved: fbcon: fix NULL pointer dereference for a console without vcdata fbconnewmodelist runs when a framebuffer's modelist changes. For each console mapped to it with fbdisplayi.mode set, it reads vcconsi.d and passes the vcnum to...