lkml.org 
[lkml]   [2019]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Date
    Subject[PATCH 3.16 016/157] udf: Fix crash on IO error during truncate
    3.16.72-rc1 review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Jan Kara <jack@suse.cz>

    commit d3ca4651d05c0ff7259d087d8c949bcf3e14fb46 upstream.

    When truncate(2) hits IO error when reading indirect extent block the
    code just bugs with:

    kernel BUG at linux-4.15.0/fs/udf/truncate.c:249!
    ...

    Fix the problem by bailing out cleanly in case of IO error.

    Reported-by: jean-luc malet <jeanluc.malet@gmail.com>
    Signed-off-by: Jan Kara <jack@suse.cz>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    ---
    fs/udf/truncate.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/fs/udf/truncate.c
    +++ b/fs/udf/truncate.c
    @@ -261,6 +261,9 @@ void udf_truncate_extents(struct inode *
    epos.block = eloc;
    epos.bh = udf_tread(sb,
    udf_get_lb_pblock(sb, &eloc, 0));
    + /* Error reading indirect block? */
    + if (!epos.bh)
    + return;
    if (elen)
    indirect_ext_len =
    (elen + sb->s_blocksize - 1) >>
    \
     
     \ /
      Last update: 2019-08-10 22:54    [W:2.039 / U:0.060 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site