CVE-2025-40046

CVE-2025-40046 is a Linux kernel vulnerability in the io_uring zcrx path. The issue arises from io_zcrx_recv_skb() double-counting desc->count when handling frag lists, causing a recv limit overrun (buffers total > requested). This could impact availability (high) with limited confidentiali...

CVE-2025-40046 io_uring/zcrx: fix overshooting recv limit

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

RHEL 10 : kernel (RHSA-2025:19106)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:19106 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: NFS: Fix a race when updatin...

Linux Distros Unpatched Vulnerability : CVE-2025-39984

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after- free in skbresetmacheader include/linux/skbuff.h:3150...

Siemens SIMATIC Devices Improper Input Validation (CVE-2024-42281)

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a segment issue when downgrading gsosize Linearize the skb when downgrading gsosize because it may trigger a BUGON later when the skb is segmented as described in 1,2. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC Devices Use After Free (CVE-2025-21764)

ndisc: use RCU protection in ndiscallocskb This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503652; scriptversion"1.3";...

Siemens SIMATIC Devices Use After Free (CVE-2025-21760)

ndisc: extend RCU protection in ndiscsendskb This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503636; scriptversion"1.3";...

Linux Distros Unpatched Vulnerability : CVE-2023-53716

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: fix skb leak in skbtstamptx Commit 50749f2dd685 tcp/udp: Fix memleaks of sk and zerocop...

Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices Access of Uninitialized Pointer (CVE-2024-49938)

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9khtc: Use skbsetlength for resetting urb before resubmit Syzbot points out that skbtrim has a sanity check on the existing length of the skb, which can be uninitialised in some error paths. The intent here is clearly ju...

SUSE CVE-2025-38165

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix panic when calling skblinearize The panic can be reproduced by executing the command: ./bench sockmap -c 2 -p 1 -a --rx-verdict-ingress --rx-strp 100000 Then a kernel panic was captured: ''' 657.460555 kernel BU...

EUVD-2022-54671

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb-nfct and set skb-nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the...

CVE-2023-53716

In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in skbtstamptx Commit 50749f2dd685 "tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp." added a call to skborphanfragsrx to fix leaks with zerocopy skbs. But it ended up adding a leak of its own...

UBUNTU-CVE-2023-53716

In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in skbtstamptx Commit 50749f2dd685 "tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp." added a call to skborphanfragsrx to fix leaks with zerocopy skbs. But it ended up adding a leak of its own...

CVE-2023-53716 net: fix skb leak in __skb_tstamp_tx()

In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in skbtstamptx Commit 50749f2dd685 "tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp." added a call to skborphanfragsrx to fix leaks with zerocopy skbs. But it ended up adding a leak of its own...

CVE-2023-53716 net: fix skb leak in __skb_tstamp_tx()

In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in skbtstamptx Commit 50749f2dd685 "tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp." added a call to skborphanfragsrx to fix leaks with zerocopy skbs. But it ended up adding a leak of its own...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-987710)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987710 advisory. In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer in skbsegmentlist Commit 3a1296a38d0c net: Support GRO/GSO fraglist chainin...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 Azure kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-53261: coresight: Fix memory leak in acpibuffer-pointer bsc1249770. CVE-2024-46733: btrfs: fix qgroup reserve leaks in cowfilerange bsc1230708...

PT-2025-51566

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue in the net/mlx5e component related to handling XDP programs and skb socket buffer generation. XDP programs can modify the layout of an xdp buff using t...

EUVD-2025-34588

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...

UBUNTU-CVE-2025-39984

In the Linux kernel, the following vulnerability has been resolved: net: tun: Update napi-skb after XDP process The syzbot report a UAF issue: BUG: KASAN: slab-use-after-free in skbresetmacheader include/linux/skbuff.h:3150 inline BUG: KASAN: slab-use-after-free in napifragsskb net/core/gro.c:723...