From: John Lindgren john.lindgren@tds.net
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=35502
agd5f: also add sanity check to connector records.
Signed-off-by: Alex Deucher alexdeucher@gmail.com Cc: stable@kernel.org --- drivers/gpu/drm/radeon/radeon_atombios.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 4a92b6d..793bbd7 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -678,7 +678,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev) ATOM_ENCODER_CAP_RECORD *cap_record; u16 caps = 0;
- while (record->ucRecordType > 0 && + while (record->ucRecordSize > 0 && + record->ucRecordType > 0 && record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) { switch (record->ucRecordType) { case ATOM_ENCODER_CAP_RECORD_TYPE: @@ -723,7 +724,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev) break; }
- while (record->ucRecordType > 0 && + while (record->ucRecordSize > 0 && + record->ucRecordType > 0 && record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) { switch (record->ucRecordType) { case ATOM_I2C_RECORD_TYPE: