CVE-2026-5590 net: ip/tcp: Null pointer dereference can be triggered by a race condition

A race condition during TCP connection teardown can cause tcprecv to operate on a connection that has already been released. If tcpconnsearch returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcpbacklogisfull and dereferenced without validatio...

CVE-2026-5590

CVE-2026-5590 describes a race condition during TCP connection teardown where tcp_recv() may operate on a released connection. If tcp_conn_search() returns NULL while processing a SYN, a NULL pointer from stale context data is passed to tcp_backlog_is_full() and dereferenced without validation, c...

Linux Distros Unpatched Vulnerability : CVE-2026-31931

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, use of the tls.alpn rule keyword can cause Suricata to crash with a...

PT-2026-30411

A race condition during TCP connection teardown can cause tcp recv to operate on a connection that has already been released. If tcp conn search returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcp backlog is full and dereferenced without...

Zephyr 安全漏洞

Zephyr is an open-source, scalable real-time operating system RTOS developed by Zephyr. There is a security vulnerability in Zephyr, which stems from race conditions during the termination of TCP connections. This vulnerability may lead to null pointer dereferencing and system crashes...

Linux Distros Unpatched Vulnerability : CVE-2026-23442

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv6: add NULL checks for idev in SRv6 paths in6devget can return NULL when the device has no IPv6 configuration e.g. MTU IPV6MINMTU or after NETDEVUNREGISTER...

Linux Distros Unpatched Vulnerability : CVE-2026-23450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in...

Linux Distros Unpatched Vulnerability : CVE-2026-23438

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: mvpp2: guard flow control update with globaltxfc in buffer switching mvpp2bmswitchbuffers unconditionally calls mvpp2bmpoolupdateprivfc when switching...

openSUSE 16 Security Update : kea (openSUSE-SU-2026:20452-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20452-1 advisory. Update to 3.0.3: - CVE-2025-11232: invalid characters cause assert bsc1252863. - CVE-2026-3608: stack overflow via maliciously crafted message...

openSUSE 16 Security Update : expat (openSUSE-SU-2026:20448-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20448-1 advisory. - CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an entity declaration value bsc1259726. -...

SUSE SLES15: expat / libexpat-devel / libexpat-devel-32bit / libexpat1 / etc (SUSE-SU-2026:1166-1)

The remote SUSE Linux SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1166-1 advisory. - CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an entity...

SUSE CVE-2026-23435

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Move event pointer setup earlier in x86pmuenable A production AMD EPYC system crashed with a NULL pointer dereference in the PMU NMI handler: BUG: kernel NULL pointer dereference, address: 0000000000000198 RIP:...

SUSE CVE-2026-23450

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smctcpsynrecvsock Syzkaller reported a panic in smctcpsynrecvsock 1. smctcpsynrecvsock is called in the TCP receive path softirq via icskafops-synrecvsock on the clcsock TCP listening...

SUSE CVE-2026-23475

In the Linux kernel, the following vulnerability has been resolved: spi: fix statistics allocation The controller per-cpu statistics is not allocated until after the controller has been registered with driver core, which leaves a window where accessing the sysfs attributes can trigger a...

CVE-2026-23450

A flaw was found in the Linux kernel's net/smc component. A remote attacker could exploit a race condition during the concurrent closing of an SMC listen socket. This could lead to a NULL pointer dereference or a use-after-free vulnerability in the smctcpsynrecvsock function, potentially causing ...

CVE-2026-23442

A flaw was found in the Linux kernel. Missing null pointer checks in the IPv6 Segment Routing SRv6 implementation, specifically within the seg6hmacvalidateskb and ipv6srhrcv functions, can occur when an IPv6 device lacks proper configuration. This oversight may allow an attacker to trigger a null...

CVE-2026-31394

A flaw was found in the Linux kernel's mac80211 component. This vulnerability occurs when processing stations on APVLAN interfaces, such as 4-address Wireless Distribution System WDS clients. An attacker could trigger a null pointer dereference during Channel Switch Announcement CSA operations,...

CVE-2026-23460

A flaw was found in the Linux kernel's net/rose component. A local user can trigger a NULL pointer dereference by calling connect a second time while a connection attempt is already in progress. This improper handling of concurrent connection attempts can lead to a system crash, resulting in a...

EUVD-2026-18720

In the Linux kernel, the following vulnerability has been resolved: net/rose: fix NULL pointer dereference in rosetransmitlink on reconnect syzkaller reported a bug 1, and the reproducer is available at 2. ROSE sockets use four sk-skstate values: TCPCLOSE, TCPLISTEN, TCPSYNSENT, and TCPESTABLISHE...

CVE-2026-31403

A flaw was found in the Linux kernel's Network File System Daemon NFSD component. A local user can exploit this vulnerability by opening the /proc/fs/nfs/exports file and then causing the associated network namespace to be destroyed. Subsequent attempts to read from the still-open file descriptor...