Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tipc: Fixed the underflow of bcackers when duplicate GRPACKMSG messages occur. The GRPACKMSG handler in tipcgroupprotorcv currently decrements bcackers for every inbound group ACK, even when the same member has already acknowledg...

AZL-83798 CVE-2026-31662 affecting package kernel for versions less than 6.6.137.1-1

In the Linux kernel, the following vulnerability has been resolved: tipc: fix bcackers underflow on duplicate GRPACKMSG The GRPACKMSG handler in tipcgroupprotorcv currently decrements bcackers on every inbound group ACK, even when the same member has already acknowledged the current broadcast...

CVE-2026-31662: Integer Underflow (Wrap or Wraparound)

In the Linux kernel, the following vulnerability has been resolved: tipc: fix bcackers underflow on duplicate GRPACKMSG The GRPACKMSG handler in tipcgroupprotorcv currently decrements bcackers on every inbound group ACK, even when the same member has already acknowledged the current broadcast...