1. Forum
  2. Usenet
  3. COMP.UNIX.BSD.FREEBSD.ANN

  • [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-21:28.vmci

    From FreeBSD Errata Notices@21:1/5 to All on Thu Nov 4 06:00:03 2021
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA512

    ============================================================================= FreeBSD-EN-21:28.vmci Errata Notice
    The FreeBSD Project

    Topic: Fix kernel panic in vmci driver initialization

    Category: core
    Module: vmci
    Announced: 2021-11-03
    Affects: FreeBSD 12.x, FreeBSD 13.0
    Corrected: 2021-10-16 18:22:43 UTC (stable/13, 13.0-STABLE)
    2021-11-03 20:40:19 UTC (releng/13.0, 13.0-RELEASE-p5)
    2021-10-17 18:51:19 UTC (stable/12, 12.2-STABLE)
    2021-11-03 20:55:32 UTC (releng/12.2, 12.2-RELEASE-p11)

    Note: Systems running FreeBSD 12.3-BETA are unaffected.

    For general information regarding FreeBSD Errata Notices and Security Advisories, including descriptions of the fields above, security
    branches, and the following sections, please visit <URL:https://security.FreeBSD.org/>.

    I. Background

    The vmci(4) driver implements VMware Virtual Machine Communication Interface for FreeBSD. It allows virtual machines to communicate with host kernel modules and VMware hypervisors.

    II. Problem Description

    An error during driver initialization results in a kernel panic due to unallocated
    resources being freed up.

    III. Impact

    The vmci(4) driver is loaded automatically by devd when the system is being
    run on the VMWare hypervisor. The kernel panic happens at the system boot stage.

    IV. Workaround

    No workaround is available.

    V. Solution

    Upgrade your system to a supported FreeBSD stable or release / security
    branch (releng) dated after the correction date.

    Perform one of the following:

    1) To update your system via a binary patch:

    Systems running a RELEASE version of FreeBSD on the amd64, i386, or
    (on FreeBSD 13 and later) arm64 platforms can be updated via the freebsd-update(8) utility:

    # freebsd-update fetch
    # freebsd-update install
    # shutdown -r now

    2) To update your system via a source code patch:

    The following patches have been verified to apply to the applicable
    FreeBSD release branches.

    a) Download the relevant patch from the location below, and verify the
    detached PGP signature using your PGP utility.

    # fetch https://security.FreeBSD.org/patches/EN-21:28/vmci.patch
    # fetch https://security.FreeBSD.org/patches/EN-21:28/vmci.patch.asc
    # gpg --verify vmci.patch.asc

    b) Apply the patch. Execute the following commands as root:

    # cd /usr/src
    # patch < /path/to/patch

    c) Recompile your kernel as described in <URL:https://www.FreeBSD.org/handbook/kernelconfig.html> and reboot the
    system.

    VI. Correction details

    This issue is corrected by the corresponding Git commit hash or Subversion revision number in the following stable and release branches:

    Branch/path Hash Revision
    - ------------------------------------------------------------------------- stable/13/ 4e5c1be4202a stable/13-n247688 releng/13.0/ 847819dca14d releng/13.0-n244763 stable/12/ r370935 releng/12.2/ r370979
    - -------------------------------------------------------------------------

    For FreeBSD 13 and later:

    Run the following command to see which files were modified by a
    particular commit:

    # git show --stat <commit hash>

    Or visit the following URL, replacing NNNNNN with the hash:

    <URL:https://cgit.freebsd.org/src/commit/?id=NNNNNN>

    To determine the commit count in a working tree (for comparison against
    nNNNNNN in the table above), run:

    # git rev-list --count --first-parent HEAD

    For FreeBSD 12 and earlier:

    Run the following command to see which files were modified by a particular revision, replacing NNNNNN with the revision number:

    # svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base

    Or visit the following URL, replacing NNNNNN with the revision number:

    <URL:https://svnweb.freebsd.org/base?view=revision&revision=NNNNNN>

    VII. References

    <URL:https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252445>

    The latest revision of this advisory is available at <URL:https://security.FreeBSD.org/advisories/FreeBSD-EN-21:28.vmci.asc> -----BEGIN PGP SIGNATURE-----

    iQIzBAEBCgAdFiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAmGDD9AACgkQ05eS9J6n 5cLAKxAApP3naU6wV6gwTGIVfugBt74TG6Q3thkg8mWqFUIRnpBgHH5yBrP7SESu N07Y21Z84tNzOoQtZs1MrF2gfW8KUdBC80wIT+1I8fEmteX/+8/6CKsu0JRh//n4 8YXf5/BjqgC2aQXfm0Zp4ddKLymmq1rLrxJcjOGqlrVsxXgSyh/ExUbpM/vIUBDi DKSpK0zjv+54R0B3ihWM2+qRmMEMKEAwxNTm3IKVUyZymYm7SpLpKZetE9GFOmKU 1AFlTomJmxbPcSGR2APu0R8xHf+wZIMiw1SqJR8bBrXxHjoVTrjl+PosIlX9jakE S9V0xbnVBSxsmIOfEXw3U8Q+AYCQ3bQXXJ1E6YmKCpOcqKYF8wC+iD7Q/OHzUCFE Hrnf8mNJHdZ8QK3WjdzfLwR2JAQ6yVJ2F2Bojqp+wwBIX+/Sq/mGPsZMVPVImdXj 9OOo+O+nZmBVqRHcLeis/GOy7CdPlnVQOxdhMcR4DMv739dJwKDYb0iYHw86KM++ 3RNbJk89TSHGYGR4bKNZsDtq+9UUclBqwZesZSVDsgyB4gJvmqeBbV1g21yVdjw8 ZvUI7MgI/4IB3Ac8qH5XSYdfUDZtDqzcjo6FnK/cEOYKFAgTPsCbBbbi3lZHoV9y Hz1Hwg0mqS1VEIUh8ipMTIod3yBiGoYEMiF4TGhpJhn100LaVFQ=
    =+4Iy
    -----END PGP SIGNATURE-----

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)