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4.9

Linux kernel RDS can crash system locally

CVE-2011-1023 · published 14 years ago
Summary

The Reliable Datagram Sockets (RDS) feature in Linux kernels older than version 2.6.38 can mishandle traffic, leading to a system crash when a local user runs certain network commands. This problem can cause the entire computer to stop working unexpectedly. Upgrading the Linux kernel to version 2.6.38 or later removes the issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
linux linux_kernel <= 2.6.37.6
2.6.37
2.6.37.1
2.6.37.2
2.6.37.3
2.6.37.4
2.6.37.5
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Original advisory text
The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and sy...
The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and system crash) via vectors involving (1) a loopback (aka loop) transmit operation or (2) an InfiniBand (aka ib) transmit operation.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.9 Medium
Exploitation
<1% chance of attack within 30 days
Timeline
Published21 Jun 2012
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2011-1023 · NVD
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