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    CVE-2009-3726

    The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.

    Published:Oct 22, 2008
    Last Modified:Apr 23, 2026
    EPS:Nov 9, 2009
    EPSS Score:0.05792
    CVSS Score:7.8

    Affected Products

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

    Exploits

    https://www.exploit-db.com/exploits/10202

    Related CVEs

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    CVE-2026-80923 — In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on tty_regis…
    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
    CVE-2026-80919 — In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix recursive ww_mutex acquir…
    CVE-2026-80918 — In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confus…
    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/torvalds/linux-2.6.git%3Ba=commit%3Bh=d953126a28f97ec965d23c69fd5795854c048f30
    http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
    http://lists.vmware.com/pipermail/security-announce/2010/000082.html
    http://secunia.com/advisories/37909
    http://secunia.com/advisories/38794
    http://secunia.com/advisories/38834
    http://secunia.com/advisories/40218
    http://www.debian.org/security/2010/dsa-2005
    http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc4
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
    http://www.openwall.com/lists/oss-security/2009/11/05/1
    http://www.openwall.com/lists/oss-security/2009/11/05/4
    http://www.redhat.com/support/errata/RHSA-2009-1670.html
    http://www.redhat.com/support/errata/RHSA-2010-0474.html
    http://www.securityfocus.com/bid/36936
    http://www.spinics.net/linux/lists/linux-nfs/msg03357.html
    http://www.ubuntu.com/usn/usn-864-1
    http://www.vupen.com/english/advisories/2010/0528
    https://bugzilla.redhat.com/show_bug.cgi?id=529227
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6636
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9734
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d953126a28f97ec965d23c69fd5795854c048f30
    http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
    http://lists.vmware.com/pipermail/security-announce/2010/000082.html
    http://secunia.com/advisories/37909
    http://secunia.com/advisories/38794
    http://secunia.com/advisories/38834
    http://secunia.com/advisories/40218
    http://www.debian.org/security/2010/dsa-2005
    http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc4
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
    http://www.openwall.com/lists/oss-security/2009/11/05/1
    http://www.openwall.com/lists/oss-security/2009/11/05/4
    http://www.redhat.com/support/errata/RHSA-2009-1670.html
    http://www.redhat.com/support/errata/RHSA-2010-0474.html
    http://www.securityfocus.com/bid/36936
    http://www.spinics.net/linux/lists/linux-nfs/msg03357.html
    http://www.ubuntu.com/usn/usn-864-1
    http://www.vupen.com/english/advisories/2010/0528
    https://bugzilla.redhat.com/show_bug.cgi?id=529227
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6636
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9734

    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