Astra Linux – vulnerability in linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: veth: Ensure eth header is in skb's linear part When feeding a decapsulated packet to a veth device with actmirred, skbheadlen may be 0. However, vethxmit calls devforwardskb, which expects at least ETHHLEN bytes of linear data a...

EUVD-2026-81944

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: Only operate on Ethernet frames actife encapsulates/decapsulates the original Ethernet header and uses skb-dev-hardheaderlen as the length of that header. That is only correct for Ethernet devices: on a device...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A flaw was discovered in the Linux kernel’s Traffic Control TC subsystem. Using a specific networking configuration—redirecting egress packets to ingress using the TC “mirred” action—a local unprivileged user could trigger a CPU soft lockup ABBA deadlock when the transport protocol in use TCP or...

CVE-2026-63982

A flaw was found in the Linux kernel's network scheduler component. This vulnerability occurs when the mirred action, used for redirecting network traffic, fails to properly detect a redirection loop. An attacker can exploit this by crafting specific network configurations that cause packets to b...

CVE-2026-63981

A flaw was found in the Linux kernel's net/sched: actmirred component. An unprivileged local user, by leveraging user namespaces to gain network administration capabilities, can create a specific network configuration that triggers an unbounded recursion. This recursion bypasses a depth limit...

SUSE CVE-2026-63981

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...

SUSE CVE-2026-63982

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects to ingress from either ingress or egress the loop state from schedmirreddev array dev is lost because of 1 the packet deferral into the...

Linux Distros Unpatched Vulnerability : CVE-2026-63981

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact...

Linux Distros Unpatched Vulnerability : CVE-2026-63982

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects t...

CVE-2026-63981

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...

CVE-2026-63982

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects to ingress from either ingress or egress the loop state from schedmirreddev array dev is lost because of 1 the packet deferral into the...

CVE-2026-63982

This CVE concerns the Linux kernel net/sched mirred loop where redirecting between ingress and egress could lose the loop state in sched_mirred_dev, preventing discovery of a loop. The issue arises when packets are deferred to backlog and the sched_mirred_dev array is cleared, causing loop state ...

CVE-2026-63982 net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects to ingress from either ingress or egress the loop state from schedmirreddev array dev is lost because of 1 the packet deferral into the...

CVE-2026-63982 net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects to ingress from either ingress or egress the loop state from schedmirreddev array dev is lost because of 1 the packet deferral into the...

EUVD-2026-45755

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects to ingress from either ingress or egress the loop state from schedmirreddev array dev is lost because of 1 the packet deferral into the...

CVE-2026-63982

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix ethx:ingress - ethy:egress - ethx:ingress mirred loop When mirred redirects to ingress from either ingress or egress the loop state from schedmirreddev array dev is lost because of 1 the packet deferral into the...

CVE-2026-63981

CVE-2026-63981 — Linux kernel net/sched act_mirred blockcast recursion fix . The issue arises in tcf_mirred_act() where, on a blockcast path (tcfm_blockid != 0), the recursion counter sched_mirred_nest isn’t incremented before calling tcf_blockcast(), allowing MIRRED_NEST_LIMIT to be bypassed and...

EUVD-2026-45754

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...

CVE-2026-63981 net/sched: act_mirred: Fix blockcast recursion bypass leading to stack overflow

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...

CVE-2026-63981 net/sched: act_mirred: Fix blockcast recursion bypass leading to stack overflow

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: Fix blockcast recursion bypass leading to stack overflow tcfmirredact checks schedmirrednest against MIRREDNESTLIMIT 4 to prevent deep recursion. However, when the action uses blockcast tcfmblockid != 0, the...