Revision 836b34a935abc91e13e63053d0a83b24dfb5ea78 authored by Vladis Dronov on 31 March 2016, 16:05:43 UTC, committed by Takashi Iwai on 31 March 2016, 16:07:31 UTC
create_fixed_stream_quirk(), snd_usb_parse_audio_interface() and
create_uaxx_quirk() functions allocate the audioformat object by themselves
and free it upon error before returning. However, once the object is linked
to a stream, it's freed again in snd_usb_audio_pcm_free(), thus it'll be
double-freed, eventually resulting in a memory corruption.
This patch fixes these failures in the error paths by unlinking the audioformat
object before freeing it.
Based on a patch by Takashi Iwai <tiwai@suse.de>
[Note for stable backports:
this patch requires the commit 902eb7fd1e4a ('ALSA: usb-audio: Minor
code cleanup in create_fixed_stream_quirk()')]
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1283358
Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: <stable@vger.kernel.org> # see the note above
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 parent 8eb2221
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitignore | -rw-r--r-- | 1.2 KB |
| .mailmap | -rw-r--r-- | 5.5 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 95.4 KB |
| Kbuild | -rw-r--r-- | 2.6 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 337.4 KB |
| Makefile | -rw-r--r-- | 53.7 KB |
| README | -rw-r--r-- | 18.2 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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