CVE-2026-53078

The CVE-2026-53078 issue is a Linux kernel BPF sock_ops vulnerability. When a BPF sock_ops program accesses ctx fields with the same destination and source registers (dst_reg == src_reg), SOCK_OPS_GET_SK() and SOCK_OPS_GET_FIELD() failed to zero the destination register in the !fullsock/!locked_t...

CVE-2026-53078 bpf: Fix same-register dst/src OOB read and pointer leak in sock_ops

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix same-register dst/src OOB read and pointer leak in sockops When a BPF sockops program accesses ctx fields with dstreg == srcreg, the SOCKOPSGETSK and SOCKOPSGETFIELD macros fail to zero the destination register in the...

CVE-2026-53034 bpf, sockmap: Fix af_unix null-ptr-deref in proto update

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix null-ptr-deref in proto update unixstreamconnect sets skstate WRITEONCEsk-skstate, TCPESTABLISHED before it assigns a peer unixpeersk = newsk. skstate == TCPESTABLISHED makes sockmapskstateallowed believe...

CVE-2026-53033 bpf, sockmap: Take state lock for af_unix iter

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Take state lock for afunix iter When a BPF iterator program updates a sockmap, there is a race condition in unixstreambpfupdateproto where the peer pointer can become stale1 during a state transition TCPESTABLISHED ...

CVE-2026-53033

CVE-2026-53033 affects the Linux kernel’s BPF sockmap path, causing a race in unix_stream_bpf_update_proto() that can yield a Use-After-Free when a BPF iterator updates a sockmap during a TCP state transition. The issue is resolved by taking the state lock for AF_UNIX iterations to keep the unix ...

CVE-2026-53014 net/sched: act_mirred: fix wrong device for mac_header_xmit check in tcf_blockcast_redir

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: fix wrong device for macheaderxmit check in tcfblockcastredir In tcfblockcastredir, when iterating block ports to redirect packets to multiple devices, the macheaderxmit flag is queried from the wrong device...

CVE-2026-53009

The CVE-2026-53009 issue affects the Linux kernel ice network driver. When ice_tso() or ice_tx_csum() fail, the error path in ice_xmit_frame_ring() frees the skb, but the first tx_buf may still reference it and be marked ICE_TX_BUF_SKB, with next_to_use unchanged. If there is no subsequent packet...

CVE-2026-53009

In the Linux kernel, the following vulnerability has been resolved: ice: fix double-free of txbuf skb If icetso or icetxcsum fail, the error path in icexmitframering frees the skb, but the 'first' txbuf still points to it and is marked as valid ICETXBUFSKB. 'nexttouse' remains unchanged, so the...

CVE-2026-53006 ipv6: fix possible UAF in icmpv6_rcv()

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6rcv Caching saddr and daddr before pskbpull is problematic since skb-head can change. Remove these temporary variables: - We only access &ipv6hdrskb-saddr and &ipv6hdrskb-daddr when netdbgratelimit...

CVE-2026-53005 af_unix: Drop all SCM attributes for SOCKMAP.

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AFUNIX GC. When a socket in SOCKMAP receives skb with inflight fd, skpsockverdictdataready looks up the mapped socket and enqueue skb to its...

CVE-2026-53005 af_unix: Drop all SCM attributes for SOCKMAP.

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AFUNIX GC. When a socket in SOCKMAP receives skb with inflight fd, skpsockverdictdataready looks up the mapped socket and enqueue skb to its...

CVE-2026-53005

CVE-2026-53005 affects the Linux kernel af_unix SOCKMAP feature. The issue arises from improper handling of SCM attributes when data is passed to SOCKMAP, enabling a use-after-free and inflight-file-descriptor leaks due to inability of GC paths to inspect psock queues after skb redirection. Multi...

CVE-2026-53004 sctp: fix OOB write to userspace in sctp_getsockopt_peer_auth_chunks

In the Linux kernel, the following vulnerability has been resolved: sctp: fix OOB write to userspace in sctpgetsockoptpeerauthchunks sctpgetsockoptpeerauthchunks checks that the caller's optval buffer is large enough for the peer AUTH chunk list with if len gauthchunks, which lives at offset...

CVE-2026-52993 tipc: fix double-free in tipc_buf_append()

In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipcbufappend tipcmsgvalidate can potentially reallocate the skb it is validating, freeing the old one. In tipcbufappend, it was being called with a pointer to a local variable which was a copy of the...

CVE-2026-52993

In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipcbufappend tipcmsgvalidate can potentially reallocate the skb it is validating, freeing the old one. In tipcbufappend, it was being called with a pointer to a local variable which was a copy of the...

CVE-2026-52993 tipc: fix double-free in tipc_buf_append()

In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipcbufappend tipcmsgvalidate can potentially reallocate the skb it is validating, freeing the old one. In tipcbufappend, it was being called with a pointer to a local variable which was a copy of the...

CVE-2026-52982

In the Linux kernel, the following vulnerability has been resolved: net: usb: rtl8150: fix use-after-free in rtl8150startxmit syzbot reported a KASAN slab-use-after-free read in rtl8150startxmit when accessing skb-len for tx statistics after usbsubmiturb has been called: BUG: KASAN:...

CVE-2026-52981

CVE-2026-52981 concerns a Linux kernel issue in neigh_xmit: when called with an uninitialized neighbor table (e.g., NEIGH_ND_TABLE with IPv6 disabled), neigh_xmit can return -EAFNOSUPPORT without releasing the skb, risking a memory leak. The fix removes the remaining code path that could neither ...

CVE-2026-52981 neigh: let neigh_xmit take skb ownership

In the Linux kernel, the following vulnerability has been resolved: neigh: let neighxmit take skb ownership neighxmit always releases the skb, except when no neighbour table is found. But even the first added user of neighxmit mpls relied on neighxmit to release the skb or queue it for tx. sashik...

CVE-2026-52982 net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: net: usb: rtl8150: fix use-after-free in rtl8150startxmit syzbot reported a KASAN slab-use-after-free read in rtl8150startxmit when accessing skb-len for tx statistics after usbsubmiturb has been called: BUG: KASAN:...