Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a failure in the allocation of the receive buffer in the pn533 driver. This failure may lead to null...

PT-2026-35012

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the NFC PN533 component where the pn532 receive buf function may fail to allocate a fresh receive buffer before consuming bytes. If the alloc skb function fails, the...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel. This vulnerability arises when the lan966xfdmareload function fails to allocate a new RX buffer, causing the...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010835)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010835 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: fix a signed-integer-overflow bug in tcpaddbacklog The type of skrcvbuf and sksndbuf in stru...

NanoMQ Buffer Overflow Vulnerability (CNVD-2026-16831)

NanoMQ is a lightweight and fast MQTT Broker for IoT edge platforms. A buffer overflow vulnerability exists in NanoMQ versions prior to 0.24.8. The vulnerability stems from the MQTT-over-WebSocket transport failing to properly validate the receive buffer size when processing MQTT packets with...

PT-2026-36449

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the NFC pn533 component, the pn532 receive buf function appends incoming bytes to dev-recv skb and only resets the buffer upon recognition of a complete frame by pn532 uart rx is fram...

curl: SMB READ_ANDX DataOffset not validated

Summary: in smbrequeststate case SMBDOWNLOAD curl reads two server-controlled fields from a READANDX response and uses them to decide where in the receive buffer file data starts. c / lib/smb.c / len = Curlread16leconst unsigned char msg + sizeofstruct smbheader + 11; off = Curlread16leconst...

kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

A flaw was found in the Linux kernel’s TCP implementation in the function tcpaddbacklog. When calculating the maximum acceptable backlog for TCP sockets, the sum of the receive buffer skrcvbuf, the send buffer sksndbuf, and a fixed constant may exceed the maximum value of a signed integer due to...

Siemens SIMATIC S7-1500 Loop with Unreachable Exit Condition ('Infinite Loop') (CVE-2025-38727)

In the Linux kernel, the following vulnerability has been resolved: netlink: avoid infinite retry looping in netlinkunicast netlinkattachskb checks for the socket's read memory allocation constraints. Firstly, it has: rmem skrcvbuf to check if the just increased rmem value fits into the socket's...

kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

A flaw was found in the Linux kernel’s TCP implementation in the function tcpaddbacklog. When calculating the maximum acceptable backlog for TCP sockets, the sum of the receive buffer skrcvbuf, the send buffer sksndbuf, and a fixed constant may exceed the maximum value of a signed integer due to...

kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

A flaw was found in the Linux kernel’s TCP implementation in the function tcpaddbacklog. When calculating the maximum acceptable backlog for TCP sockets, the sum of the receive buffer skrcvbuf, the send buffer sksndbuf, and a fixed constant may exceed the maximum value of a signed integer due to...

kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

A flaw was found in the Linux kernel’s TCP implementation in the function tcpaddbacklog. When calculating the maximum acceptable backlog for TCP sockets, the sum of the receive buffer skrcvbuf, the send buffer sksndbuf, and a fixed constant may exceed the maximum value of a signed integer due to...

kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

A flaw was found in the Linux kernel’s TCP implementation in the function tcpaddbacklog. When calculating the maximum acceptable backlog for TCP sockets, the sum of the receive buffer skrcvbuf, the send buffer sksndbuf, and a fixed constant may exceed the maximum value of a signed integer due to...

kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

A flaw was found in the Linux kernel’s TCP implementation in the function tcpaddbacklog. When calculating the maximum acceptable backlog for TCP sockets, the sum of the receive buffer skrcvbuf, the send buffer sksndbuf, and a fixed constant may exceed the maximum value of a signed integer due to...

Azure Linux 3.0 Security Update: kernel (CVE-2024-45001)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-45001 advisory. - In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix RX buf allocsize alignmen...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000807)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000807 advisory. The socksetsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sksndbuf and skrcvbuf, which allows local users to cause ...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001958)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001958 advisory. The socksetsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sksndbuf and skrcvbuf, which allows local users to cause ...

CVE-2025-71093 e1000: fix OOB in e1000_tbi_should_accept()

In the Linux kernel, the following vulnerability has been resolved: e1000: fix OOB in e1000tbishouldaccept In e1000tbishouldaccept we read the last byte of the frame via 'datalength - 1' to evaluate the TBI workaround. If the descriptor- reported length is zero or larger than the actual RX buffer...

CVE-2022-50865

CVE-2022-50865: In the Linux kernel, signed integer overflow can occur in tcp_add_backlog() when calculating backlog limits from sk_rcvbuf, sk_sndbuf, and 64*1024. The fix reduces the limit by halving sndbuf, addressing potential backlog miscalculation and TCP behavior under certain workloads. Co...

SUSE CVE-2022-50679

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix DMA mappings leak During reallocation of RX buffers, new DMA mappings are created for those buffers. steps for reproduction: while : do for i=0; i=8160; i=i+32 do ethtool -G enp130s0f0 rx $i tx $i sleep 0.5 ethtool -g...