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...

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 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-2026-74436

In the Linux kernel, the following vulnerability has been resolved: rxrpc: serialize kernel accept preallocation with socket teardown rxrpckernelchargeaccept reads rx-backlog without any socket/backlog synchronization and passes that raw pointer into rxrpcservicepreallocone. A concurrent...

CVE-2026-74436

CVE-2026-74436 affects the Linux kernel rxrpc subsystem. The issue arises when rxrpc_kernel_charge_accept() reads rx->backlog without proper socket/backlog synchronization, passing a raw pointer into rxrpc_service_prealloc_one() while a concurrent rxrpc_discard_prealloc() may set rx->backlo...

EUVD-2026-59583

In the Linux kernel, the following vulnerability has been resolved: rxrpc: serialize kernel accept preallocation with socket teardown rxrpckernelchargeaccept reads rx-backlog without any socket/backlog synchronization and passes that raw pointer into rxrpcservicepreallocone. A concurrent...

CVE-2026-74435

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-2026-74436 rxrpc: serialize kernel accept preallocation with socket teardown

In the Linux kernel, the following vulnerability has been resolved: rxrpc: serialize kernel accept preallocation with socket teardown rxrpckernelchargeaccept reads rx-backlog without any socket/backlog synchronization and passes that raw pointer into rxrpcservicepreallocone. A concurrent...

CVE-2026-74436 rxrpc: serialize kernel accept preallocation with socket teardown

In the Linux kernel, the following vulnerability has been resolved: rxrpc: serialize kernel accept preallocation with socket teardown rxrpckernelchargeaccept reads rx-backlog without any socket/backlog synchronization and passes that raw pointer into rxrpcservicepreallocone. A concurrent...

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-2026-74434 rxrpc: Don't move a peeked OOB message onto the pending queue

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Don't move a peeked OOB message onto the pending queue rxrpcrecvmsgoob takes a received oob message off recvmsgoobq and, if a response is needed, moves it onto the pendingoobq tree. However, only the unlink from recvmsgoob...

CVE-2026-74434 rxrpc: Don't move a peeked OOB message onto the pending queue

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Don't move a peeked OOB message onto the pending queue rxrpcrecvmsgoob takes a received oob message off recvmsgoobq and, if a response is needed, moves it onto the pendingoobq tree. However, only the unlink from recvmsgoob...

EUVD-2026-59581

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Don't move a peeked OOB message onto the pending queue rxrpcrecvmsgoob takes a received oob message off recvmsgoobq and, if a response is needed, moves it onto the pendingoobq tree. However, only the unlink from recvmsgoob...

CVE-2026-74434

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Don't move a peeked OOB message onto the pending queue rxrpcrecvmsgoob takes a received oob message off recvmsgoobq and, if a response is needed, moves it onto the pendingoobq tree. However, only the unlink from recvmsgoob...

CVE-2026-74434

The CVE-2026-74434 issue affects the Linux kernel rxrpc path: when reading an OOB message with MSG_PEEK, rxrpc_recvmsg_oob() unlinks from recvmsg_oobq but always moves the message onto pending_oobq, risking the sk_buff rbnode linkage being overwritten. This allows the skb to be reachable from bot...

CVE-2026-74433

In the Linux kernel, CVE-2026-74433 describes a use-after-free (UAF) in rxgk_issue_challenge() within rxrpc. The bug occurs because a page containing the challenge content is freed after a tracepoint is invoked, while the whdr referenced by the tracepoint points into that same page. The fix updat...

CVE-2026-74432

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix leak of released call in recvmsgMSGPEEK Fix rxrpcrecvmsg to also drop the ref it holds on an already-released call if MSGPEEK is in force the function holds a ref on the call irrespective of whether MSGPEEK is specifie...

CVE-2026-74432 rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix leak of released call in recvmsgMSGPEEK Fix rxrpcrecvmsg to also drop the ref it holds on an already-released call if MSGPEEK is in force the function holds a ref on the call irrespective of whether MSGPEEK is specifie...

CVE-2026-74432

The CVE-2026-74432 issue affects the Linux kernel’s rxrpc recvmsg path. The fix adds dropping of a reference on an already-released call when MSG_PEEK is in force, addressing a leak where a ref was held regardless of MSG_PEEK usage. Affected component: rxrpc_recvmsg() in the kernel; root cause: l...

EUVD-2026-59579

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix leak of released call in recvmsgMSGPEEK Fix rxrpcrecvmsg to also drop the ref it holds on an already-released call if MSGPEEK is in force the function holds a ref on the call irrespective of whether MSGPEEK is specifie...