CVE-2026-53035 bpf, sockmap: Fix af_unix iter deadlock

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap. Which ends up spinning at sockmapupdateelem's bhlocksock: WARNING:...

CVE-2026-53034

CVE-2026-53034 is a Linux kernel issue in af_unix sockmap handling where a race between unix_stream_connect() state update and unix_peer assignment can lead to a NULL pointer dereference in unix_stream_bpf_update_proto(). The root cause is a timing window when sk_state is set to TCP_ESTABLISHED b...

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 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-2026-53005

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...

kernel: Linux kernel: Use-after-free in BPF sockmap can lead to denial of service and privilege escalation

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap subsystem. A race condition exists where the sksocket is not properly locked or referenced during the skbsendsock function call, allowing for a use-after-free vulnerability. This can be exploited by a local attacker, leadin...

PT-2026-52280

Name of the Vulnerable Software and Affected Versions Linux kernel version 7.1.0-rc6 Description An issue exists in the UDP receive path where the skb-dev field is repurposed as dev scratch via a union in sk buff. When a UDP socket is in a sockmap, the sk psock verdict recv function runs an...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the bpf code, there is a fix for a use-after-free of sk-sksocket in skpsockverdictdataready. The syzbot reported a use-after-free of the sk-sksocket of an AFUNIX socket in skpsockverdictdataready. 0 In the unixstreamsendmsg...

kernel: bpf: fix ktls panic with sockmap

In the Linux kernel, the following vulnerability has been resolved: bpf: fix ktls panic with sockmap 2172.936997 ------------ cut here ------------ 2172.936999 kernel BUG at lib/ioviter.c:629! ...... 2172.944996 PKRU: 55555554 2172.945155 Call Trace: 2172.945299 2172.945428 ? die+0x36/0x90...

kernel: bpf: fix ktls panic with sockmap

In the Linux kernel, the following vulnerability has been resolved: bpf: fix ktls panic with sockmap 2172.936997 ------------ cut here ------------ 2172.936999 kernel BUG at lib/ioviter.c:629! ...... 2172.944996 PKRU: 55555554 2172.945155 Call Trace: 2172.945299 2172.945428 ? die+0x36/0x90...

ALSA-2026:18587 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: bonding: check xdp prog when set bond mode CVE-2025-22105 kernel: block: fix resource leak in blkregisterqueue error path CVE-2025-37980 kernel: dmaengine: idxd: fix memory leak in error...

ALSA-2026:18134 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: tcpbpf: Fix the skmemuncharge logic in tcpbpfsendmsg CVE-2024-56633 kernel: KVM: x86: Load DR6 with guest value only before entering .vcpurun loop CVE-2025-21839 kernel: block: fix resour...

SUSE CVE-2026-43016

In the Linux kernel, the following vulnerability has been resolved: bpf: sockmap: Fix use-after-free of sk-sksocket in skpsockverdictdataready. syzbot reported use-after-free of AFUNIX socket's sk-sksocket in skpsockverdictdataready. 0 In unixstreamsendmsg, the peer socket's -skdataready is calle...

Linux Distros Unpatched Vulnerability : CVE-2026-43016

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: sockmap: Fix use-after-free of sk-sksocket in skpsockverdictdataready. syzbot reported use- after-free of AFUNIX socket's sk-sksocket in...

CVE-2026-43016

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter sockmap component. This vulnerability, a use-after-free, occurs due to improper management of AFUNIX socket objects within the skpsockverdictdataready function. A local attacker could exploit this issue by sending specially crafted...

CVE-2026-43016

In the Linux kernel, the following vulnerability has been resolved: bpf: sockmap: Fix use-after-free of sk-sksocket in skpsockverdictdataready. syzbot reported use-after-free of AFUNIX socket's sk-sksocket in skpsockverdictdataready. 0 In unixstreamsendmsg, the peer socket's -skdataready is calle...

CVE-2026-43016 bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().

In the Linux kernel, the following vulnerability has been resolved: bpf: sockmap: Fix use-after-free of sk-sksocket in skpsockverdictdataready. syzbot reported use-after-free of AFUNIX socket's sk-sksocket in skpsockverdictdataready. 0 In unixstreamsendmsg, the peer socket's -skdataready is calle...

CVE-2026-43016 bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().

In the Linux kernel, the following vulnerability has been resolved: bpf: sockmap: Fix use-after-free of sk-sksocket in skpsockverdictdataready. syzbot reported use-after-free of AFUNIX socket's sk-sksocket in skpsockverdictdataready. 0 In unixstreamsendmsg, the peer socket's -skdataready is calle...