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    Subject[PATCH 4.14 030/229] fuse: limit nsec
    Date
    From: Miklos Szeredi <mszeredi@redhat.com>

    commit 47912eaa061a6a81e4aa790591a1874c650733c0 upstream.

    Limit nanoseconds to 0..999999999.

    Fixes: d8a5ba45457e ("[PATCH] FUSE - core")
    Cc: <stable@vger.kernel.org>
    Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    fs/fuse/inode.c | 6 ++++++
    1 file changed, 6 insertions(+)

    --- a/fs/fuse/inode.c
    +++ b/fs/fuse/inode.c
    @@ -174,6 +174,12 @@ void fuse_change_attributes_common(struc
    inode->i_uid = make_kuid(&init_user_ns, attr->uid);
    inode->i_gid = make_kgid(&init_user_ns, attr->gid);
    inode->i_blocks = attr->blocks;
    +
    + /* Sanitize nsecs */
    + attr->atimensec = min_t(u32, attr->atimensec, NSEC_PER_SEC - 1);
    + attr->mtimensec = min_t(u32, attr->mtimensec, NSEC_PER_SEC - 1);
    + attr->ctimensec = min_t(u32, attr->ctimensec, NSEC_PER_SEC - 1);
    +
    inode->i_atime.tv_sec = attr->atime;
    inode->i_atime.tv_nsec = attr->atimensec;
    /* mtime from server may be stale due to local buffered write */

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