summaryrefslogtreecommitdiffstats
path: root/sound/oss/midi_synth.c
Commit message (Collapse)AuthorAgeFilesLines
* sound/oss: remove offset from load_patch callbacksDan Rosenberg2011-03-231-17/+13
| | | | | | | | | | | | | | | | | | | | | | Was: [PATCH] sound/oss/midi_synth: prevent underflow, use of uninitialized value, and signedness issue The offset passed to midi_synth_load_patch() can be essentially arbitrary. If it's greater than the header length, this will result in a copy_from_user(dst, src, negative_val). While this will just return -EFAULT on x86, on other architectures this may cause memory corruption. Additionally, the length field of the sysex_info structure may not be initialized prior to its use. Finally, a signed comparison may result in an unintentionally large loop. On suggestion by Takashi Iwai, version two removes the offset argument from the load_patch callbacks entirely, which also resolves similar issues in opl3. Compile tested only. v3 adjusts comments and hopefully gets copy offsets right. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* sound: oss: midi_synth: check get_user() return valueKulikov Vasiliy2010-07-291-1/+3
| | | | | | | get_user() may fail, if so return -EFAULT. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* sound: OSS: keep index within bounds of midi_devs[]Roel Kluin2009-11-161-1/+1
| | | | | | | | When the {orig,midi}_dev equals num_midis, that's one too large already. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] kill sound/oss/*_syms.cAdrian Bunk2006-10-041-2/+19
| | | | | | | | | Move all EXPORT_SYMBOL's from sound/oss/*_syms.c to the files with the actual functions. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* fix file specification in commentsUwe Zeisberger2006-10-031-1/+1
| | | | | | | Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+697
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
OpenPOWER on IntegriCloud