CVE-2026-53184

A flaw was found in the Linux kernel. When a User Datagram Protocol UDP socket is configured with a sockmap, and a BPF Berkeley Packet Filter program attached to it calls a socket-lookup helper, the skb-dev field is not properly cleared. This improper handling of the skb-dev field can lead to a...

CVE-2026-53184

The CVE-2026-53184 issue affects the Linux kernel UDP sockmap path. On UDP receive, skb->dev is repurposed as dev_scratch; when a SK_SKB verdict program uses BPF socket-lookup helpers (bpf_sk_lookup_tcp/udp, bpf_skc_lookup_tcp), skb->dev may still hold the dev_scratch value, and dev_net(skb...

EUVD-2026-39275

In the Linux kernel, the following vulnerability has been resolved: udp: clear skb-dev before running a sockmap verdict On the UDP receive path skb-dev is repurposed as devscratch the truesize/state cache set by udpsetdevscratch, through the union struct netdevice dev; unsigned long devscratch; i...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ipvs: fixed the NULL pointer dereference in the route error path of ipv4 null-ptr-deref. The IPv4 code path in ipvsgetoutrt calls dstlinkfailure, without ensuring that skb-dev is set. This leads to a NULL pointer dereference in...

UBUNTU-CVE-2026-52912

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfqueue: hold bridge skb-dev while queued brpassframeup rewrites skb-dev from the ingress port to the bridge master before queueing bridge LOCALIN packets. NFQUEUE only holds references on state.in/out and bridge...

CVE-2026-23277 net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit

In the Linux kernel, the following vulnerability has been resolved: net/sched: teql: fix NULL pointer dereference in iptunnelxmit on TEQL slave xmit teqlmasterxmit calls netdevstartxmitskb, slave to transmit through slave devices, but does not update skb-dev to the slave device beforehand. When a...

SUSE CVE-2025-68813

In the Linux kernel, the following vulnerability has been resolved: ipvs: fix ipv4 null-ptr-deref in route error path The IPv4 code path in ipvsgetoutrt calls dstlinkfailure without ensuring skb-dev is set, leading to a NULL pointer dereference in fibcomputespecdst when ipv4linkfailure attempts t...

CVE-2025-68813

A NULL pointer dereference vulnerability was found in the Linux kernel's IPVS IP Virtual Server implementation. In ipvsgetoutrt, when route lookup fails, dstlinkfailure is called with skb-dev set to NULL. The subsequent call chain through ipv4linkfailure to fibcomputespecdst dereferences skb-dev,...

CVE-2025-68813

In the Linux kernel, the following vulnerability has been resolved: ipvs: fix ipv4 null-ptr-deref in route error path The IPv4 code path in ipvsgetoutrt calls dstlinkfailure without ensuring skb-dev is set, leading to a NULL pointer dereference in fibcomputespecdst when ipv4linkfailure attempts t...

CVE-2025-68813 ipvs: fix ipv4 null-ptr-deref in route error path

In the Linux kernel, the following vulnerability has been resolved: ipvs: fix ipv4 null-ptr-deref in route error path The IPv4 code path in ipvsgetoutrt calls dstlinkfailure without ensuring skb-dev is set, leading to a NULL pointer dereference in fibcomputespecdst when ipv4linkfailure attempts t...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from not setting skb-dev in a routing error path, which could lead to a null pointer dereference...

Linux Distros Unpatched Vulnerability : CVE-2025-68813

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipvs: fix ipv4 null-ptr-deref in route error path The IPv4 code path in ipvsgetoutrt calls dstlinkfailure without ensuring skb-dev is set, leading to a NULL...

Siemens SIMATIC S7-1500 Use After Free (CVE-2024-49982)

In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 aoe: fix the potential use-after- free problem in aoecmdcfgpkts makes tx calling devput instead of doing in aoecmdcfgpkts. It...

AZL-70355 CVE-2022-50073 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

CVE-2022-50073 net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

CVE-2022-50073

CVE-2022-50073 affects the Linux kernel TAP path. Root cause: in dev_parse_header_protocol the code dereferences skb->dev which can be NULL when the tap driver calls virtio_net_hdr_to_skb, causing a NULL pointer dereference. The issue is triggered in tap_get_user/tap_sendmsg paths and can cras...

CVE-2024-49982 aoe: fix the potential use-after-free problem in more places

In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 "aoe: fix the potential use-after-free problem in aoecmdcfgpkts" makes tx calling devput instead of doing in aoecmdcfgpkts. It...

CVE-2024-35839 netfilter: bridge: replace physindev with physinif in nf_bridge_info

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: replace physindev with physinif in nfbridgeinfo An skb can be added to a neigh-arpqueue while waiting for an arp reply. Where original skb's skb-dev can be different to neigh's neigh-dev. For instance in case o...