The vulnerability in the net/core/skbuff.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability in the net/core/skbuff.c module of the Linux operating system is related to improper memory release before deleting the last reference. Exploiting this vulnerability can allow an attacker to cause a service failure...

Linux Distros Unpatched Vulnerability : CVE-2025-68363

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Check skb-transportheader is set in bpfskbcheckmtu The bpfskbcheckmtu helper needs to use skb-transportheader when the BPFMTUCHKSEGS flag is used:...

kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails

A vulnerability was found in tlsdecryptsg in net/tls/tlssw.c in networking subsystem in the Linux Kernel.In this flaw, If it fails to clone of the input skb to hold the reference to the memory it uses may lead a use-after-free...

kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags

In the Linux kernel, the following vulnerability has been resolved: skbuff: skbsegment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 "skbuff: in skbsegment, call zerocopy functions once per nskb" added the call to zero copy functions in skbsegment. The change introduced ...

kernel: net: tun: Update napi->skb after XDP process

A use-after-free flaw was found in tungetuser in drivers/net/tun.c in network TUNnel module in Linux kernel. This flaw could allow an attacker to crash the system at device disconnect. This vulnerability could even lead to a kernel information leak problem...

UBUNTU-CVE-2025-40350

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix generating skb from non-linear xdpbuff for striding RQ XDP programs can change the layout of an xdpbuff through bpfxdpadjusttail and bpfxdpadjusthead. Therefore, the driver cannot assume the size of the linear...

CVE-2025-68234 io_uring/cmd_net: fix wrong argument types for skb_queue_splice()

In the Linux kernel, the following vulnerability has been resolved: iouring/cmdnet: fix wrong argument types for skbqueuesplice If timestamp retriving needs to be retried and the local list of SKB's already has entries, then it's spliced back into the socket queue. However, the arguments for the...

CVE-2025-68169 netpoll: Fix deadlock in memory allocation under spinlock

In the Linux kernel, the following vulnerability has been resolved: netpoll: Fix deadlock in memory allocation under spinlock Fix a AA deadlock in refillskbs where memory allocation while holding skbpool-lock can trigger a recursive lock acquisition attempt. The deadlock scenario occurs when the...

CVE-2025-40350 net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for striding RQ

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix generating skb from non-linear xdpbuff for striding RQ XDP programs can change the layout of an xdpbuff through bpfxdpadjusttail and bpfxdpadjusthead. Therefore, the driver cannot assume the size of the linear...

PT-2025-51647

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the io uring/cmd net subsystem related to incorrect argument types used in the skb queue splice function. Specifically, when timestamp retrieval...

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 mlx5e not properly handling the non-linear xdpbuff, which could lead to incorrect skb generation...

ALSA-2025:23279 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: cloneprivatemnt: make sure that caller has CAPSYSADMIN in the right userns CVE-2025-38499 kernel: net: tun: Update napi-skb after XDP process CVE-2025-39984 For more details about the...

CVE-2023-53802

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: htchst: free skb in ath9khtcrxmsg if there is no callback function It is stated that ath9khtcrxmsg either frees the provided skb or passes its management to another callback function. However, the skb is not freed in...

kernel: net/sched: act_ct: fix skb leak and crash on ooo frags

A memory leak flaw and potential kernel crash were found in the Linux kernel’s Conntrack module. This issue occurs when Conntrack is being used by a local user for a specific configuration, and both fragmented packets are received remotely and out of order. This flaw allows a local or remote user...

EUVD-2023-60160

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

DEBIAN-CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

UBUNTU-CVE-2023-53821

In the Linux kernel, the following vulnerability has been resolved: ip6vti: fix slab-use-after-free in decodesession6 When ipv6vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipv6vti device sen...

Bluetooth: hci_event: validate skb length for unknown CC opcode

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EUVD-2022-55701

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...