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    CVE-2009-2849

    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.

    Published:Jul 1, 2009
    Last Modified:Apr 23, 2026
    EPS:Aug 18, 2009
    EPSS Score:0.00125
    CVSS Score:4.7

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    http://xorl.wordpress.com/2009/07/21/linux-kernel-md-driver-null-pointer-dereference/http://xorl.wordpress.com/2009/07/21/linux-kernel-md-driver-null-pointer-dereference/

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
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    CVE-2026-80917 — In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer deref…
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    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
    http://xorl.wordpress.com/2009/07/21/linux-kernel-md-driver-null-pointer-dereference/
    https://exchange.xforce.ibmcloud.com/vulnerabilities/52858
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10396
    https://rhn.redhat.com/errata/RHSA-2009-1540.html
    https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html
    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
    http://xorl.wordpress.com/2009/07/21/linux-kernel-md-driver-null-pointer-dereference/
    https://exchange.xforce.ibmcloud.com/vulnerabilities/52858
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10396
    https://rhn.redhat.com/errata/RHSA-2009-1540.html
    https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High