AuxXxilium/linux_dsm_epyc7002
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85c50a5899
linux_dsm_epyc7002/sound/core/seq
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Dan Carpenter 85c50a5899 ALSA: seq: seq_oss_event: missing range checks 
The "dev" variable could be out of bounds.  Calling
snd_seq_oss_synth_is_valid() checks that it is is a valid device
which has been opened.  We check this inside set_note_event() so
this function can't succeed without a valid "dev".  But we need to
do the check earlier to prevent invalid dereferences and memory
corruption.

One call tree where "dev" could be out of bounds is:
-> snd_seq_oss_oob_user()
   -> snd_seq_oss_process_event()
      -> extended_event()
         -> note_on_event()

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-03-04 16:39:50 +01:00
..
oss ALSA: seq: seq_oss_event: missing range checks 2013-03-04 16:39:50 +01:00
Kconfig ALSA: clean up the logic for building sequencer modules 2009-05-29 11:49:42 +02:00
Makefile ALSA: OSS sequencer should be initialized after snd_seq_system_client_init 2009-07-19 19:10:01 +02:00
seq_clientmgr.c sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed 2011-10-31 19:31:22 -04:00
seq_clientmgr.h [ALSA] sound/core/seq: move declarations of globally visible variables to proper headers 2008-01-31 17:29:35 +01:00
seq_compat.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
seq_device.c various: Fix spelling of "registered" in comments. 2012-11-19 14:29:46 +01:00
seq_dummy.c Documentation: remove references to /etc/modprobe.conf 2012-03-30 16:03:15 -07:00
seq_fifo.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00
seq_fifo.h [ALSA] Remove xxx_t typedefs: Sequencer 2006-01-03 12:17:52 +01:00
seq_info.c sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed 2011-10-31 19:31:22 -04:00
seq_info.h [ALSA] Optimize for config without PROC_FS (seq and oss parts) 2006-01-03 12:30:05 +01:00
seq_lock.c sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed 2011-10-31 19:31:22 -04:00
seq_lock.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
seq_memory.c sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed 2011-10-31 19:31:22 -04:00
seq_memory.h ALSA: core: sparse cleanups 2011-02-14 17:10:11 +01:00
seq_midi_emul.c sound: Add module.h to the previously silent sound users 2011-10-31 19:31:21 -04:00
seq_midi_event.c sound: Add module.h to the previously silent sound users 2011-10-31 19:31:21 -04:00
seq_midi.c sound: fix drivers needing module.h not moduleparam.h 2011-10-31 19:31:19 -04:00
seq_ports.c sound: Add module.h to the previously silent sound users 2011-10-31 19:31:21 -04:00
seq_ports.h [ALSA] Remove xxx_t typedefs: Sequencer 2006-01-03 12:17:52 +01:00
seq_prioq.c ALSA: Add missing KERN_* prefix to printk in sound/core 2009-02-05 16:00:49 +01:00
seq_prioq.h [ALSA] Remove xxx_t typedefs: Sequencer 2006-01-03 12:17:52 +01:00
seq_queue.c ALSA: core: remove unused variables. 2011-05-26 08:19:04 +02:00
seq_queue.h [ALSA] semaphore -> mutex (core part) 2006-03-22 10:24:50 +01:00
seq_system.c sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed 2011-10-31 19:31:22 -04:00
seq_system.h [ALSA] Remove xxx_t typedefs: Sequencer 2006-01-03 12:17:52 +01:00
seq_timer.c sound: seq_timer: simplify snd_seq_timer_set_tick_resolution() parameters 2010-01-18 16:38:30 +01:00
seq_timer.h [ALSA] sound/core/seq: move declarations of globally visible variables to proper headers 2008-01-31 17:29:35 +01:00
seq_virmidi.c sound: Add module.h to the previously silent sound users 2011-10-31 19:31:21 -04:00
seq.c device.h: cleanup users outside of linux/include (C files) 2012-03-11 14:27:37 -04:00