CVE-2009-2849

Severity: medium (CVSS 4.7 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: 2009-08-18 · updated 2026-06-16

Description

The md driver (drivers/md/md.c) in the Linux kernel before 2.6.30.2 might allow local users to cause a denial of service (NULL pointer dereference) via vectors related to "suspend_* sysfs attributes" and the (1) suspend_lo_store or (2) suspend_hi_store functions. NOTE: this is only a vulnerability when sysfs is writable by an attacker.

Affected products

Linux kernel: through 2.6.30.1; 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+302)

References

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.30.y.git%3Ba=commit%3Bh=3c92900d9a4afb176d3de335dc0da0198660a244
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
http://secunia.com/advisories/36501
http://secunia.com/advisories/37105
http://secunia.com/advisories/38794
http://secunia.com/advisories/38834
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.2
http://www.openwall.com/lists/oss-security/2009/07/24/1
http://www.openwall.com/lists/oss-security/2009/07/26/1
http://www.securitytracker.com/id?1022961
http://www.ubuntu.com/usn/USN-852-1
http://www.vupen.com/english/advisories/2010/0528

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