CVE-2022-49733
published 2025-03-02CVE-2022-49733: In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at…
PriorityP416medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.15%
5.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
There is a small race window at snd_pcm_oss_sync() that is called from
OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls
snd_pcm_oss_make_ready() at first, then takes the params_lock mutex
for the rest. When the stream is set up again by another thread
between them, it leads to inconsistency, and may result in unexpected
results such as NULL dereference of OSS buffer as a fuzzer spotted
recently.
The fix is simply to cover snd_pcm_oss_make_ready() call into the same
params_lock mutex with snd_pcm_oss_make_ready_locked() variant.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.19.11-1 (bookworm) | linux 5.19.11-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e3a5d59a17e9a42e3f3e0e37342b2679bab2ff43 < 4051324a6dafd7053c74c475e80b3ba10ae672b0 | 4051324a6dafd7053c74c475e80b3ba10ae672b0 |
| linux | linux | >= e3a5d59a17e9a42e3f3e0e37342b2679bab2ff43 < fce793a056c604b41a298317cf704dae255f1b36 | fce793a056c604b41a298317cf704dae255f1b36 |
| linux | linux | >= e3a5d59a17e9a42e3f3e0e37342b2679bab2ff43 < 8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 | 8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 |
| linux | linux | >= e3a5d59a17e9a42e3f3e0e37342b2679bab2ff43 < 723ac5ab2891b6c10dd6cc78ef5456af593490eb | 723ac5ab2891b6c10dd6cc78ef5456af593490eb |
| linux | linux | >= e3a5d59a17e9a42e3f3e0e37342b2679bab2ff43 < 8423f0b6d513b259fdab9c9bf4aaa6188d054c2d | 8423f0b6d513b259fdab9c9bf4aaa6188d054c2d |
| linux | linux_kernel | < 5.4.215 | 5.4.215 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.148-1 | 5.10.148-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 5.11 < 5.15.68 | 5.15.68 |
| linux | linux_kernel | >= 5.16 < 5.19.9 | 5.19.9 |
| linux | linux_kernel | >= 5.5 < 5.10.148 | 5.10.148 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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Red Hat
kernel: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
vendor_redhat·2025-03-02·CVSS 4.7
CVE-2022-49733 [MEDIUM] CWE-476 kernel: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
kernel: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
There is a small race window at snd_pcm_oss_sync() that is called from
OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls
snd_pcm_oss_make_ready() at first, then takes the params_lock mutex
for the rest. When the stream is set up again by another thread
between them, it leads to inconsistency, and may result in unexpected
results such as NULL dereference of OSS buffer as a fuzzer spotted
recently.
The fix is simply to cover snd_pcm_oss_make_ready() call into the same
params_lock mutex with snd_pcm_oss_make_ready_locked() variant.
Statement: There is no known way to trigger the bug and some complex race condition should h
Debian
CVE-2022-49733: linux - In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: ...
vendor_debian·2022·CVSS 4.7
CVE-2022-49733 [MEDIUM] CVE-2022-49733: linux - In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: ...
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pcm_oss_sync() that is called from OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls snd_pcm_oss_make_ready() at first, then takes the params_lock mutex for the rest. When the stream is set up again by another thread between them, it leads to inconsistency, and may result in unexpected results such as NULL dereference of OSS buffer as a fuzzer spotted recently. The fix is simply to cover snd_pcm_oss_make_ready() call into the same params_lock mutex with snd_pcm_oss_make_ready_locked() variant.
Scope: local
bookworm: resolved (fixed in 5.19.11-1)
bullseye: resolved (fixed in 5.10.148-1)
forky: resolved (fixed in 5.19.11-1)
sid: resolved (
OSV
CVE-2022-49733: In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pc
osv·2025-03-02·CVSS 4.7
CVE-2022-49733 [MEDIUM] CVE-2022-49733: In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pc
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pcm_oss_sync() that is called from OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls snd_pcm_oss_make_ready() at first, then takes the params_lock mutex for the rest. When the stream is set up again by another thread between them, it leads to inconsistency, and may result in unexpected results such as NULL dereference of OSS buffer as a fuzzer spotted recently. The fix is simply to cover snd_pcm_oss_make_ready() call into the same params_lock mutex with snd_pcm_oss_make_ready_locked() variant.
GHSA
GHSA-73xw-qxgf-j8c4: In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
There is a small race window at snd_
ghsa_unreviewed·2025-03-02
CVE-2022-49733 [MEDIUM] CWE-362 GHSA-73xw-qxgf-j8c4: In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
There is a small race window at snd_
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
There is a small race window at snd_pcm_oss_sync() that is called from
OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls
snd_pcm_oss_make_ready() at first, then takes the params_lock mutex
for the rest. When the stream is set up again by another thread
between them, it leads to inconsistency, and may result in unexpected
results such as NULL dereference of OSS buffer as a fuzzer spotted
recently.
The fix is simply to cover snd_pcm_oss_make_ready() call into the same
params_lock mutex with snd_pcm_oss_make_ready_locked() variant.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490ebhttps://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2dhttps://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36
2025-03-02
Published