| Message ID | 20180723175458.108900-1-ebiggers3@gmail.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | crypto: fix crash in scatterwalk_pagedone() | expand |
On Mon, Jul 23, 2018 at 10:54:55AM -0700, Eric Biggers wrote: > From: Eric Biggers <ebiggers@google.com> > > This series fixes the bug reported by Liu Chao (found using syzkaller) > where a crash occurs in scatterwalk_pagedone() on architectures such as > arm and arm64 that implement flush_dcache_page(), due to an invalid page > pointer when walk->offset == 0. This series attempts to address the > underlying problem which is that scatterwalk_pagedone() shouldn't have > been called at all in that case. > > Eric Biggers (3): > crypto: skcipher - fix crash flushing dcache in error path > crypto: blkcipher - fix crash flushing dcache in error path > crypto: ablkcipher - fix crash flushing dcache in error path > > crypto/ablkcipher.c | 57 +++++++++++++++++++++------------------------ > crypto/blkcipher.c | 54 +++++++++++++++++++++--------------------- > crypto/skcipher.c | 53 ++++++++++++++++++++--------------------- > 3 files changed, 79 insertions(+), 85 deletions(-) All applied. Thanks.
From: Eric Biggers <ebiggers@google.com> This series fixes the bug reported by Liu Chao (found using syzkaller) where a crash occurs in scatterwalk_pagedone() on architectures such as arm and arm64 that implement flush_dcache_page(), due to an invalid page pointer when walk->offset == 0. This series attempts to address the underlying problem which is that scatterwalk_pagedone() shouldn't have been called at all in that case. Eric Biggers (3): crypto: skcipher - fix crash flushing dcache in error path crypto: blkcipher - fix crash flushing dcache in error path crypto: ablkcipher - fix crash flushing dcache in error path crypto/ablkcipher.c | 57 +++++++++++++++++++++------------------------ crypto/blkcipher.c | 54 +++++++++++++++++++++--------------------- crypto/skcipher.c | 53 ++++++++++++++++++++--------------------- 3 files changed, 79 insertions(+), 85 deletions(-)