CVE-2010-2653

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2010-10-05 · updated 2026-06-16
Weakness: CWE-362

Description

Race condition in the hvc_close function in drivers/char/hvc_console.c in the Linux kernel before 2.6.34 allows local users to cause a denial of service or possibly have unspecified other impact by closing a Hypervisor Virtual Console device, related to the hvc_open and hvc_remove functions.

Affected products

Linux kernel: before 2.6.34 — fixed in 2.6.34

How to fix

Upgrade to a fixed version: Linux kernel 2.6.34. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=320718ee074acce5ffced6506cb51af1388942aa
http://lkml.org/lkml/2010/3/3/207
http://patchwork.kernel.org/patch/83353/
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
http://www.openwall.com/lists/oss-security/2010/03/04/3
http://www.openwall.com/lists/oss-security/2010/04/17/2
http://www.openwall.com/lists/oss-security/2010/04/18/1
http://www.openwall.com/lists/oss-security/2010/04/19/1
http://www.openwall.com/lists/oss-security/2010/04/19/2
http://www.openwall.com/lists/oss-security/2010/07/01/1
http://www.openwall.com/lists/oss-security/2010/07/06/7
http://www.openwall.com/lists/oss-security/2010/07/07/5

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