CVE-2025-23134
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-23134
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-23134.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-23134
- Downstream
- Related
- Published
- 2025-04-16T14:13:15Z
- Modified
- 2025-10-18T00:01:07.958942Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- ALSA: timer: Don't take register_mutex with copy_from/to_user()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ALSA: timer: Don't take registermutex with copyfrom/to_user()
The infamous mmaplock taken in copyfrom/to_user() can be often problematic when it's called inside another mutex, as they might lead to deadlocks.
In the case of ALSA timer code, the bad pattern is with guard(mutex)(®istermutex) that covers copyfrom/to_user() -- which was mistakenly introduced at converting to guard(), and it had been carefully worked around in the past.
This patch fixes those pieces simply by moving copyfrom/touser() out of the register mutex lock again.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/15291b561d8cc835a2eea76b394070cf8e072771
- https://git.kernel.org/stable/c/296f7a9e15aab276db11206cbc1e2ae1215d7862
- https://git.kernel.org/stable/c/3424c8f53bc63c87712a7fc22dc13d0cc85fb0d6
- https://git.kernel.org/stable/c/b074f47e55df93832bbbca1b524c501e6fea1c0d
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3923de04c81733b30b8ed667569632272fdfed9aFixed15291b561d8cc835a2eea76b394070cf8e072771
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3923de04c81733b30b8ed667569632272fdfed9aFixed296f7a9e15aab276db11206cbc1e2ae1215d7862
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3923de04c81733b30b8ed667569632272fdfed9aFixedb074f47e55df93832bbbca1b524c501e6fea1c0d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3923de04c81733b30b8ed667569632272fdfed9aFixed3424c8f53bc63c87712a7fc22dc13d0cc85fb0d6
Affected versions
v6.*
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.13
v6.12.14
v6.12.15
v6.12.16
v6.12.17
v6.12.18
v6.12.19
v6.12.2
v6.12.20
v6.12.21
v6.12.22
v6.12.3
v6.12.4
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.13.1
v6.13.10
v6.13.2
v6.13.3
v6.13.4
v6.13.5
v6.13.6
v6.13.7
v6.13.8
v6.13.9
v6.14
v6.14-rc1
v6.14-rc2
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.14.1
v6.8
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
vanir_signatures
[
{
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"length": 1126.0
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"target": {
"file": "sound/core/timer.c",
"function": "snd_timer_user_ginfo"
},
"id": "CVE-2025-23134-22f6b8cc",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@296f7a9e15aab276db11206cbc1e2ae1215d7862",
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{
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"target": {
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"function": "snd_timer_user_ginfo"
},
"id": "CVE-2025-23134-2a417eaf",
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{
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"length": 1958.0
},
"target": {
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"function": "snd_timer_user_next_device"
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"id": "CVE-2025-23134-3b1261fa",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3424c8f53bc63c87712a7fc22dc13d0cc85fb0d6",
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"id": "CVE-2025-23134-3c4e15b5",
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