CVE-2026-74544

A flaw was found in the Linux kernel's clsu32 module. An unprivileged user, through user or network namespaces, could provide a specially crafted offshift value that is not properly validated. This improper validation leads to a shift-out-of-bounds condition, resulting in undefined behavior and...

CVE-2026-72450

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability, a shift-out-of-bounds error, occurs when an unspecified address family AFUNSPEC selector with a large prefix length is incorrectly matched against an IPv4 flow. An attacker could potentially exploit this by sending special...

CVE-2026-74579

A flaw was found in the Linux kernel's netfilter subsystem. The nftpayloadoffloadmask function, which builds offload match masks for network packet header fields, contains a shift-out-of-bounds error. This occurs when processing partial IPv6 address matches, leading to an incorrect mask calculati...

Linux Distros Unpatched Vulnerability : CVE-2026-72483

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: host: max3421: Fix shift-out-of-bounds in max3421hubcontrol The max3421hubcontrol function handles USB hub class requests to the virtual root hub. In the...

Linux Distros Unpatched Vulnerability : CVE-2026-72450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixl...

CVE-2026-74579

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftpayload: fix mask build for partial field offload nftpayloadoffloadmask builds the offload match mask for a payload expression that covers only part of a header field. For a partial IPv6 address match fieldlen = 16,...

CVE-2026-74579

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftpayload: fix mask build for partial field offload nftpayloadoffloadmask builds the offload match mask for a payload expression that covers only part of a header field. For a partial IPv6 address match fieldlen = 16,...

CVE-2026-74579 netfilter: nft_payload: fix mask build for partial field offload

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftpayload: fix mask build for partial field offload nftpayloadoffloadmask builds the offload match mask for a payload expression that covers only part of a header field. For a partial IPv6 address match fieldlen = 16,...

CVE-2026-74544

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

UBUNTU-CVE-2026-74544

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

CVE-2026-74544

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

EUVD-2026-59737

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

CVE-2026-74544

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

CVE-2026-74544

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

CVE-2026-74544

The CVE-2026-74544 issue is in the Linux kernel net/sched cls_u32 implementation. u32_change() copies offshift (unsigned char, 0-255) without bounds checks, enabling undefined behavior (shift-out-of-bounds) in u32_classify() when TC_U32_VAROFFSET is set and offshift ≥ 32. Public sources (Linux ke...

CVE-2026-74544 net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

CVE-2026-74544 net/sched: cls_u32: validate offshift to prevent shift-out-of-bounds

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: validate offshift to prevent shift-out-of-bounds u32change copies the user-provided tcu32sel.offshift unsigned char, 0-255 into the kernel knode object without bounds validation. When a packet later hits...

CVE-2026-72483

In the Linux kernel, the following vulnerability has been resolved: usb: host: max3421: Fix shift-out-of-bounds in max3421hubcontrol The max3421hubcontrol function handles USB hub class requests to the virtual root hub. In the default branches of both the ClearPortFeature and SetPortFeature switc...

CVE-2026-72450

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixlen e.g. 128 matched against IPv4 flow when XFRMSTATEAFUNSPEC is set...

CVE-2026-72483

In the Linux kernel, the following vulnerability has been resolved: usb: host: max3421: Fix shift-out-of-bounds in max3421hubcontrol The max3421hubcontrol function handles USB hub class requests to the virtual root hub. In the default branches of both the ClearPortFeature and SetPortFeature switc...