The vulnerability of the net/packet component in the Linux operating system’s kernel allows a hacker to disclose sensitive information or cause service failures.

The vulnerability of the net/packet component in the Linux operating system’s kernel is related to the presence of access beyond the boundaries of the slab memory area in packetrecvmsg. Exploiting this vulnerability can allow an attacker to disclose sensitive information or cause service failures...

CVE-2021-4442

CVE-2021-4442 – The Linux kernel TCP stack vulnerability described as: a syzkaller repro could cause RCV_SEQ to be advanced after data restoration in the receive queue, enabling an out-of-order or invalid sequence handling when TCP_QUEUE_SEQ is used on non-empty queues. The connected documents (A...

CVE-2024-42283

The CVE-2024-42283 issue in the Linux kernel concerns net/nexthop: two reserved fields in the nexthop_grp were not initialized by nla_put_nh_group(), allowing garbage to leak from the kernel. The public description notes these fields are reserved and currently unused, but their non‑zero values ca...

UBUNTU-CVE-2022-48839

In the Linux kernel, the following vulnerability has been resolved: net/packet: fix slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket is using PACKETCOPYTHRESH and mmap operations, tpacketrcv is queueing skbs with garbage in skb-cb, triggering a too big copy 1...

kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg

A flaw was found in the Bluetooth subsystem of the Linux kernel. A race condition between the btsockrecvmsg and btsockioctl functions could lead to a use-after-free on a socket buffer "skb". This flaw allows a local user to cause a denial of service condition or potential code execution...

CVE-2021-47563 ice: avoid bpf_prog refcount underflow

In the Linux kernel, the following vulnerability has been resolved: ice: avoid bpfprog refcount underflow Ice driver has the routines for managing XDP resources that are shared between ndobpf op and VSI rebuild flow. The latter takes place for example when user changes queue count on an interface...

SUSE CVE-2021-47448

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

CVE-2021-47448

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

kernel: bluetooth: bt_sock_ioctl race condition leads to use-after-free in bt_sock_recvmsg

A flaw was found in the Bluetooth subsystem of the Linux kernel. A race condition between the btsockrecvmsg and btsockioctl functions could lead to a use-after-free on a socket buffer "skb". This flaw allows a local user to cause a denial of service condition or potential code execution...

CVE-2021-47448

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

DEBIAN-CVE-2021-47448

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

CVE-2021-47448

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

CVE-2021-47448

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

CVE-2021-47448 mptcp: fix possible stall on recvmsg()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

CVE-2021-47448

CVE-2021-47448 affects the Linux kernel’s MPTCP path: recvmsg() with MSG_WAITALL can stall when not enough data is available, leaving mptcp_wait_data() in a state where MPTCP_DATA_READY is set but never cleared, which can trigger an RCU stall. The bug is in the mptcp_recvmsg/mptcp_wait_data path ...

CVE-2021-47448 mptcp: fix possible stall on recvmsg()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix possible stall on recvmsg recvmsg can enter an infinite loop if the caller provides the MSGWAITALL, the data present in the receive queue is not sufficient to fulfill the request, and no more data is received by the...

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 the fact that if the caller provides MSGWAITALL, the data present in the receive queue does not satisfy the...

CVE-2023-52701

In the Linux kernel, the following vulnerability has been resolved: net: use a bounce buffer for copying skb-mark syzbot found arm64 builds would crash in sockrecvmark when CONFIGHARDENEDUSERCOPY=y x86 and powerpc are not detecting the issue because they define useraccessbegin. This will be handl...

CVE-2024-35970

A vulnerability was found in the Linux kernel's Unix domain socket afunix implementation, where stale Out-of-Band OOB data is not cleared from the receive queue. This issue arises when OOB data is dequeued but the associated oobskb is not cleared, leading to incorrect behavior in subsequent recv...

CVE-2024-35970

The CVE-2024-35970 issue affects the Linux kernel AF_UNIX socket path. The root cause is improper handling of OOB data: when an OOB skb is dequeued, unix_sock(sk)->oob_skb is not cleared, causing incorrect uAPI state and potential deadlocks. Repro shows a socketpair exchange where MSG_OOB is u...