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    • Volker Rümelin's avatar
      ossaudio: fix out of bounds write · 4f50d4a4
      Volker Rümelin authored
      
      In function oss_read() a read error currently does not exit the
      read loop. With no data to read the variable pos will quickly
      underflow and a subsequent successful read overwrites memory
      outside the buffer. This patch adds the missing break statement
      to the error path of the function.
      
      To reproduce start qemu with -audiodev oss,id=audio0 and in the
      guest start audio recording. After some time this will trigger
      an exception.
      
      Fixes: 3ba4066d "ossaudio: port to the new audio backend api"
      
      Signed-off-by: default avatarVolker Rümelin <vr_qemu@t-online.de>
      Message-id: 20200707180836.5435-1-vr_qemu@t-online.de
      Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
      4f50d4a4
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