CVE-2025-38622 net: drop UFO packets in udp_rcv_segment()

In the Linux kernel, the following vulnerability has been resolved: net: drop UFO packets in udprcvsegment When sending a packet with virtionethdr to tun device, if the gsotype in virtionethdr is SKBGSOUDP and the gsosize is less than udphdr size, below crash may happen. ------------ cut here...

SUSE CVE-2025-38375

In the Linux kernel, the following vulnerability has been resolved: virtio-net: ensure the received length does not exceed allocated size In xdplinearizepage, when reading the following buffers from the ring, we forget to check the received length with the true allocate size. This can lead to an...

CVE-2022-50073

A flaw was found in the tap module in the Linux kernel. A NULL pointer dereference can be triggered due to a missing initialization, resulting in a denial of service...

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...

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 a memory leak caused by virtionet not freeing xdppage in XPDTX mode...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: virtioring: Fixed a data race by marking eventtriggered as “racy” for KCSAN. The syzbot reported a data race when accessing eventTriggered. Here is the simplified stack when the issue occurred:...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: virtio-net: A memory leak occurs in the virtnetxskpoolenable function when freeing the xskbuffs. The selftests added to our CI by Bui Quang Minh recently revealed that there is a memory leak in the error path of...

OESA-2025-1594 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: net: test for not too small csumstart in virtionethdrtoskb syzbot was able to trigger this warning 1, after injecting a malicious packet through afpacket, settin...

CVE-2021-36147

An issue was discovered in ACRN before 2.5. It allows a devicemodel/hw/pci/virtio/virtionet.c virtionetpingrxq NULL pointer dereference for vq-used...

kernel: virtio-net: fix overflow inside virtnet_rq_alloc

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix overflow inside virtnetrqalloc When the frag just got a page, then may lead to regression on VM. Specially if the sysctl net.core.highorderallocdisable value is 1, then the frag always get a page when do refill...

USN-7303-2 linux-oracle, linux-oracle-6.8 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - Drivers cor...

USN-7303-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - Drivers cor...

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 an xdprxqinfo error in virtionet after a hang/recovery...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: added more sanity checks to qdiscpktleninit. One of the approaches handles SKBGSODODGY, assuming that skb-len is greater than hdrlen. The function virtionethdrtoskb does not fully dissect TCP headers; it only ensures that th...

CVE-2024-56674 virtio_net: correct netdev_tx_reset_queue() invocation point

In the Linux kernel, the following vulnerability has been resolved: virtionet: correct netdevtxresetqueue invocation point When virtnetclose is followed by virtnetopen, some TX completions can possibly remain unconsumed, until they are finally processed during the first NAPI poll after the...

kernel: net: avoid potential underflow in qdisc_pkt_len_init() with UFO

In the Linux kernel, the following vulnerability has been resolved: net: avoid potential underflow in qdiscpktleninit with UFO After commit 7c6d2ecbda83 "net: be more gentle about silly gso requests coming from user" virtionethdrtoskb had sanity check to detect malicious attempts from user space ...

SUSE CVE-2024-49948

In the Linux kernel, the following vulnerability has been resolved: net: add more sanity checks to qdiscpktleninit One path takes care of SKBGSODODGY, assuming skb-len is bigger than hdrlen. virtionethdrtoskb does not fully dissect TCP headers, it only make sure it is at least 20 bytes. It is...

CVE-2024-43897

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Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name CVE-2024-39494 In the Linux kernel, the following vulnerability has been resolved: net, sunrpc: Remap EPERM in case of connection failure in xstcpsetupsocket...

kernel: virtio-net: tap: mlx5_core short frame denial of service

A denial of service DoS attack was found in the mlx5 driver in the Linux kernel. A KVM guest VM using virtio-net can crash the host by sending a short packet, for example, size = ETHHLEN...