tree 9083a77f2a4c97e1658a3db8019f29599a4dd187
parent 77b67063bb6bce6d475e910d3b886a606d0d91f7
author Colin Ian King <colin.king@canonical.com> 1352893793 +0000
committer Anton Vorontsov <anton.vorontsov@linaro.org> 1352946621 -0800

pstore: Fix NULL pointer dereference in console writes

Passing a NULL id causes a NULL pointer deference in writers such as
erst_writer and efi_pstore_write because they expect to update this id.
Pass a dummy id instead.

This avoids a cascade of oopses caused when the initial
pstore_console_write passes a null which in turn causes writes to the
console causing further oopses in subsequent pstore_console_write calls.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>