CVE-2011-1023

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-06-21 · updated 2026-06-16

Description

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.

Affected products

Linux kernel: through 2.6.37.6; 2.6.37, 2.6.37-rc1, 2.6.37-rc2, 2.6.37-rc3, 2.6.37-rc4, 2.6.37-rc5 (+5)

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6094628bfd94323fc1cea05ec2c6affd98c18f7f
http://www.openwall.com/lists/oss-security/2011/03/03/2
https://bugzilla.redhat.com/show_bug.cgi?id=680345
https://github.com/torvalds/linux/commit/6094628bfd94323fc1cea05ec2c6affd98c18f7f
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6094628bfd94323fc1cea05ec2c6affd98c18f7f
http://www.openwall.com/lists/oss-security/2011/03/03/2
https://bugzilla.redhat.com/show_bug.cgi?id=680345
https://github.com/torvalds/linux/commit/6094628bfd94323fc1cea05ec2c6affd98c18f7f

Get alerted when CVE-2011-1023 or the next vulnerability affects your stack