Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: macsec: Fixed the replay protection issue when pn wraps at U32MAX. In macsecpostdecrypt, when pn is U32MAX, pn + 1 causes an overflow from a 32-bit value to 0. This prevents the first branch from being executed. If...

ROS-20260925-73-0027

The vulnerability of the macsecpostdecrypt function in the drivers/net/macsec.c module of the network device driver for the Linux operating system is related to the bypassing of the authentication process. Exploiting this vulnerability allows a remote attacker to compromise the integrity of...

Linux kernel MACsec Buffer Overflow DoS

The vulnerability in the macsecpostdecrypt function within the drivers/net/macsec.c file of the Linux kernel network device driver relates to authentication bypass. Exploitation of this vulnerability enables a remote attacker to compromise the integrity of protected information or cause a denial ...

CVE-2026-63925: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsecpostdecrypt, when pn is U32MAX, pn + 1 overflows u32 to 0 and the first branch never fires. If nextpnhalves.lower is also in the upper half, pnsamehalfpn, lower is true...