CVE-2011-1581

Severity: critical (CVSS 9.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-05-26 · updated 2026-06-16
Weakness: CWE-20

Description

The bond_select_queue function in drivers/net/bonding/bond_main.c in the Linux kernel before 2.6.39, when a network device with a large number of receive queues is installed but the default tx_queues setting is used, does not properly restrict queue indexes, which allows remote attackers to cause a denial of service (BUG and system crash) or possibly have unspecified other impact by sending network traffic.

Affected products

Linux kernel: before 2.6.39 — fixed in 2.6.39

How to fix

Upgrade to a fixed version: Linux kernel 2.6.39. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fd0e435b0fe85622f167b84432552885a4856ac8
http://openwall.com/lists/oss-security/2011/04/13/16
http://openwall.com/lists/oss-security/2011/04/13/4
http://securitytracker.com/id?1025558
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
https://bugzilla.redhat.com/show_bug.cgi?id=696029
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fd0e435b0fe85622f167b84432552885a4856ac8
http://openwall.com/lists/oss-security/2011/04/13/16
http://openwall.com/lists/oss-security/2011/04/13/4
http://securitytracker.com/id?1025558
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
https://bugzilla.redhat.com/show_bug.cgi?id=696029

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