CVE-2015-6526

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    CVE-2015-6526

    Published: 31 Aug 2015Last Modified: 10 Apr 2026

    Summary:

    Details: The perf_callchain_user_64 function in arch/powerpc/perf/callchain.c in the Linux kernel before 4.0.2 on ppc64 platforms allows local users to cause a denial of service (infinite loop) via a deep 64-bit userspace backtrace.

    References: http://www.ubuntu.com/usn/USN-2759-1, http://www.ubuntu.com/usn/USN-2760-1, https://github.com/torvalds/linux/commit/9a5cbce421a283e6aea3c4007f141735bf9da8c3, https://bugzilla.redhat.com/show_bug.cgi?id=1218454, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a5cbce421a283e6aea3c4007f141735bf9da8c3, http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2, http://www.openwall.com/lists/oss-security/2015/08/18/4, http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html, http://www.securityfocus.com/bid/76401, http://www.securitytracker.com/id/1033728

    Affected packages

    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
    CVE-2015-6526 | CVE-DB