[PATCH 4/5] pstore/ram: Should zap persistent zone on unlink

Otherwise, unlinked file will reappear on the next boot.

Reported-by: Kees Cook keescook@chromium.org Signed-off-by: Anton Vorontsov anton.vorontsov@linaro.org Acked-by: Kees Cook keescook@chromium.org --- fs/pstore/ram.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 16ff733..453030f 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -186,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id, return -EINVAL;

persistent_ram_free_old(cxt->przs[id]); + persistent_ram_zap(cxt->przs[id]);

return 0; }