lkml.org 
[lkml]   [2020]   [May]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 05/20] tomoyo_write_control(): get rid of pointless access_ok()
    Date
    From: Al Viro <viro@zeniv.linux.org.uk>

    address is passed only to get_user()

    Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
    ---
    security/tomoyo/common.c | 2 --
    1 file changed, 2 deletions(-)

    diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
    index 1b467381986f..f93f8acd05f7 100644
    --- a/security/tomoyo/common.c
    +++ b/security/tomoyo/common.c
    @@ -2662,8 +2662,6 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,

    if (!head->write)
    return -EINVAL;
    - if (!access_ok(buffer, buffer_len))
    - return -EFAULT;
    if (mutex_lock_interruptible(&head->io_sem))
    return -EINTR;
    head->read_user_buf_avail = 0;
    --
    2.11.0
    \
     
     \ /
      Last update: 2020-05-10 01:47    [W:3.572 / U:0.004 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site