CVE-2021-47650
published 2025-02-26CVE-2021-47650: In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-compress: prevent the potentially use of null pointer There is one call trace…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-compress: prevent the potentially use of null pointer
There is one call trace that snd_soc_register_card()
->snd_soc_bind_card()->soc_init_pcm_runtime()
->snd_soc_dai_compress_new()->snd_soc_new_compress().
In the trace the 'codec_dai' transfers from card->dai_link,
and we can see from the snd_soc_add_pcm_runtime() in
snd_soc_bind_card() that, if value of card->dai_link->num_codecs
is 0, then 'codec_dai' could be null pointer caused
by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'.
And snd_soc_register_card() is called by various platforms.
Therefore, it is better to add the check in the case of misusing.
And because 'cpu_dai' has already checked in soc_init_pcm_runtime(),
there is no need to check again.
Adding the check as follow, then if 'codec_dai' is null,
snd_soc_new_compress() will not pass through the check
'if (playback + capture != 1)', avoiding the leftover use of
'codec_dai'.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 467fece8fbc6774a3a3bd0981e1a342fb5022706 < 68a69ad8df959e5211ed4a8e120783b2d352ea74 | 68a69ad8df959e5211ed4a8e120783b2d352ea74 |
| linux | linux | >= 467fece8fbc6774a3a3bd0981e1a342fb5022706 < 4639c1d97f385f4784f44d66a3da0672f4951ada | 4639c1d97f385f4784f44d66a3da0672f4951ada |
| linux | linux | >= 467fece8fbc6774a3a3bd0981e1a342fb5022706 < fc237b8d624f4bcb0f21a532627ce4e3b3a85569 | fc237b8d624f4bcb0f21a532627ce4e3b3a85569 |
| linux | linux | >= 467fece8fbc6774a3a3bd0981e1a342fb5022706 < 08af6da684b44097ea09f1d74d5858b837ed203b | 08af6da684b44097ea09f1d74d5858b837ed203b |
| linux | linux | >= 467fece8fbc6774a3a3bd0981e1a342fb5022706 < f69a75cb8a98c6c487d620442c68595726a69f60 | f69a75cb8a98c6c487d620442c68595726a69f60 |
| linux | linux | >= 467fece8fbc6774a3a3bd0981e1a342fb5022706 < de2c6f98817fa5decb9b7d3b3a8a3ab864c10588 | de2c6f98817fa5decb9b7d3b3a8a3ab864c10588 |
| linux | linux_kernel | >= 0 < 5.10.113-1 | 5.10.113-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 5.11 < 5.15.33 | 5.15.33 |
| linux | linux_kernel | >= 5.16 < 5.16.19 | 5.16.19 |
| linux | linux_kernel | >= 5.17 < 5.17.2 | 5.17.2 |
| linux | linux_kernel | >= 5.4 < 5.4.189 | 5.4.189 |
| linux | linux_kernel | >= 5.5 < 5.10.110 | 5.10.110 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: ASoC: soc-compress: prevent the potentially use of null pointer
vendor_redhat·2025-02-26·CVSS 5.5
CVE-2021-47650 [MEDIUM] kernel: ASoC: soc-compress: prevent the potentially use of null pointer
kernel: ASoC: soc-compress: prevent the potentially use of null pointer
In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-compress: prevent the potentially use of null pointer
There is one call trace that snd_soc_register_card()
->snd_soc_bind_card()->soc_init_pcm_runtime()
->snd_soc_dai_compress_new()->snd_soc_new_compress().
In the trace the 'codec_dai' transfers from card->dai_link,
and we can see from the snd_soc_add_pcm_runtime() in
snd_soc_bind_card() that, if value of card->dai_link->num_codecs
is 0, then 'codec_dai' could be null pointer caused
by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'.
And snd_soc_register_card() is called by various platforms.
Therefore, it is better to add the check in the case of misusing.
And because 'cpu_dai' has alread
Debian
CVE-2021-47650: linux - In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-c...
vendor_debian·2021·CVSS 5.5
CVE-2021-47650 [MEDIUM] CVE-2021-47650: linux - In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-c...
In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-compress: prevent the potentially use of null pointer There is one call trace that snd_soc_register_card() ->snd_soc_bind_card()->soc_init_pcm_runtime() ->snd_soc_dai_compress_new()->snd_soc_new_compress(). In the trace the 'codec_dai' transfers from card->dai_link, and we can see from the snd_soc_add_pcm_runtime() in snd_soc_bind_card() that, if value of card->dai_link->num_codecs is 0, then 'codec_dai' could be null pointer caused by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'. And snd_soc_register_card() is called by various platforms. Therefore, it is better to add the check in the case of misusing. And because 'cpu_dai' has already checked in soc_init_pcm_runtime(), there is no need to check again. Add
GHSA
GHSA-ff4j-xjhx-jpxp: In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-compress: prevent the potentially use of null pointer
There is one cal
ghsa_unreviewed·2025-09-23
CVE-2021-47650 [MEDIUM] CWE-476 GHSA-ff4j-xjhx-jpxp: In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-compress: prevent the potentially use of null pointer
There is one cal
In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-compress: prevent the potentially use of null pointer
There is one call trace that snd_soc_register_card()
->snd_soc_bind_card()->soc_init_pcm_runtime()
->snd_soc_dai_compress_new()->snd_soc_new_compress().
In the trace the 'codec_dai' transfers from card->dai_link,
and we can see from the snd_soc_add_pcm_runtime() in
snd_soc_bind_card() that, if value of card->dai_link->num_codecs
is 0, then 'codec_dai' could be null pointer caused
by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'.
And snd_soc_register_card() is called by various platforms.
Therefore, it is better to add the check in the case of misusing.
And because 'cpu_dai' has already checked in soc_init_pcm_runtime(),
there is no need to check again.
A
OSV
CVE-2021-47650: In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-compress: prevent the potentially use of null pointer There is one call
osv·2025-02-26·CVSS 5.5
CVE-2021-47650 [MEDIUM] CVE-2021-47650: In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-compress: prevent the potentially use of null pointer There is one call
In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-compress: prevent the potentially use of null pointer There is one call trace that snd_soc_register_card() ->snd_soc_bind_card()->soc_init_pcm_runtime() ->snd_soc_dai_compress_new()->snd_soc_new_compress(). In the trace the 'codec_dai' transfers from card->dai_link, and we can see from the snd_soc_add_pcm_runtime() in snd_soc_bind_card() that, if value of card->dai_link->num_codecs is 0, then 'codec_dai' could be null pointer caused by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'. And snd_soc_register_card() is called by various platforms. Therefore, it is better to add the check in the case of misusing. And because 'cpu_dai' has already checked in soc_init_pcm_runtime(), there is no need to check again. Add
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/08af6da684b44097ea09f1d74d5858b837ed203bhttps://git.kernel.org/stable/c/4639c1d97f385f4784f44d66a3da0672f4951adahttps://git.kernel.org/stable/c/68a69ad8df959e5211ed4a8e120783b2d352ea74https://git.kernel.org/stable/c/de2c6f98817fa5decb9b7d3b3a8a3ab864c10588https://git.kernel.org/stable/c/f69a75cb8a98c6c487d620442c68595726a69f60https://git.kernel.org/stable/c/fc237b8d624f4bcb0f21a532627ce4e3b3a85569
2025-02-26
Published