fc338748e3
commit 8a56ef4f3ffba9ebf4967b61ef600b0a7ba10f11 upstream. Some rawmidi compat ioctls lack of the input substream checks (although they do check only for rfile->output). This many eventually lead to an Oops as NULL substream is passed to the rawmidi core functions. Fix it by adding the proper checks before each function call. The bug was spotted by syzkaller. Reported-by: syzbot+f7a0348affc3b67bc617@syzkaller.appspotmail.com Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|---|---|---|
| .. | ||
| oss | ||
| seq | ||
| compress_offload.c | ||
| control.c | ||
| control_compat.c | ||
| ctljack.c | ||
| device.c | ||
| hrtimer.c | ||
| hwdep.c | ||
| hwdep_compat.c | ||
| info.c | ||
| info_oss.c | ||
| init.c | ||
| isadma.c | ||
| jack.c | ||
| Kconfig | ||
| Makefile | ||
| memalloc.c | ||
| memory.c | ||
| misc.c | ||
| pcm.c | ||
| pcm_compat.c | ||
| pcm_dmaengine.c | ||
| pcm_drm_eld.c | ||
| pcm_iec958.c | ||
| pcm_lib.c | ||
| pcm_memory.c | ||
| pcm_misc.c | ||
| pcm_native.c | ||
| pcm_timer.c | ||
| pcm_trace.h | ||
| rawmidi.c | ||
| rawmidi_compat.c | ||
| rtctimer.c | ||
| sgbuf.c | ||
| sound.c | ||
| sound_oss.c | ||
| timer.c | ||
| timer_compat.c | ||
| vmaster.c | ||