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-2026-53005 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-2026-52939

A flaw was found in the Linux kernel's Reliable Datagram Sockets RDS component. An unprivileged local user can trigger a kernel panic by sending a specially crafted atomic control message cmsg over an active RDS/InfiniBand IB connection. This issue is caused by improper handling of masked atomic...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In the inet section, RAW sockets that use IPPROTORAW must drop incoming ICMP packets. Yizhou Zhao reported that simply having a RAW socket with the protocol set to IPPROTORAW 255 was dangerous. The code example: socketAFINET,...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: AppArmor: Fixed the issue where NULL sock was used in aasockfileperm. Consider the possibility that sock and sock-sk could become NULL during socket setup or tear-down. This could lead to an error. The fix for NULL pointer...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net/rds: There is no shortcut for exiting from the RDSCONNERROR state. RDS connections have a state called “rdsconnpath::cpstate”. Connections transition between states, and this transition occurs under the condition...

Security update for iproute2

This update for iproute2 fixes the following issue CVE-2024-58251: denial of service via terminal escape sequences bsc1254324. Other updates: support display of bound but unconnected sockets bsc1204562 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods...

SUSE-SU-2026:2620-1 Security update for iproute2

This update for iproute2 fixes the following issue - CVE-2024-58251: denial of service via terminal escape sequences bsc1254324. Other updates: - support display of bound but unconnected sockets bsc1204562...

CVE-2026-52928

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

UBUNTU-CVE-2026-52928

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

CVE-2026-52928

CVE-2026-52928 affects the Linux kernel af_unix implementation. In non-stream sockets (e.g., SOCK_DGRAM, SOCK_SEQPACKET), SIOCATMARK is incorrectly handled for MSG_OOB and should be rejected; the fix returns -EOPNOTSUPP before inspecting the receive queue. Multiple advisories note the issue is re...

CVE-2026-52928

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

CVE-2026-52928

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

CVE-2026-52928 af_unix: Reject SIOCATMARK on non-stream sockets

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

CVE-2026-52928 af_unix: Reject SIOCATMARK on non-stream sockets

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

EUVD-2026-38698

In the Linux kernel, the following vulnerability has been resolved: afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported only for SOCKSTREAM sockets. SOCKDGRAM and SOCKSEQPACKET reject MSGOOB ...

Linux Distros Unpatched Vulnerability : CVE-2026-52928

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - afunix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSGOOB. In AFUNIX, MSGOOB is supported on...

PT-2026-51721

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the AF UNIX implementation where SIOCATMARK, which reports if the receive queue is at the urgent mark for MSG OOB Out-of-Band data, is incorrectly supported on...

PT-2026-51732

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the rds ib send cqe handler function when handling masked atomic completions. The rds ib xmit atomic function programs a masked atomic opcode either ...