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libavdevice/alsa.c: fix NULL pointer dereference

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(cherry picked from commit 82d7e375f1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Romain Beauxis
2026-04-18 09:14:50 -05:00
committed by Michael Niedermayer
parent 6299a0a5e2
commit 15032633ec
1 changed files with 4 additions and 2 deletions
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6
libavdevice/alsa.c
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@@ -381,8 +381,10 @@ int ff_alsa_get_device_list(AVDeviceInfoList *device_list, snd_pcm_stream_t stre
ret = AVERROR(ENOMEM);
goto fail;
}
new_device->device_name = av_strdup(name);
if ((tmp = strrchr(descr, '\n')) && tmp[1])
new_device->device_name = av_strdup(name ? name : "");
if (!descr)
new_device->device_description = av_strdup("");
else if ((tmp = strrchr(descr, '\n')) && tmp[1])
new_device->device_description = av_strdup(&tmp[1]);
else
new_device->device_description = av_strdup(descr);