pstore: Fix NULL pointer dereference in console writes
authorColin Ian King <colin.king@canonical.com>
Wed, 14 Nov 2012 11:49:53 +0000 (11:49 +0000)
committerAnton Vorontsov <anton.vorontsov@linaro.org>
Thu, 15 Nov 2012 02:30:21 +0000 (18:30 -0800)
commit70a6f46d7b0ec03653b9ab3f8063a9717a4a53ef
tree9083a77f2a4c97e1658a3db8019f29599a4dd187
parent77b67063bb6bce6d475e910d3b886a606d0d91f7
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>
fs/pstore/platform.c