CVE-2025-23134
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ALSA: timer: Don't take register_mutex with copy_from/to_user()
In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Don't take register_mutex with copy_from/to_user() The infamous mmap_lock taken in copy_from/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)(®ister_mutex) that covers copy_from/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 copy_from/to_user() out of the register mutex lock again.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3923de04c81733b30b8ed667569632272fdfed9a | affected | git | 15291b561d8cc835a2eea76b394070cf8e072771 | Unavailable | None listed |
| 3923de04c81733b30b8ed667569632272fdfed9a | affected | git | 296f7a9e15aab276db11206cbc1e2ae1215d7862 | Unavailable | None listed |
| 3923de04c81733b30b8ed667569632272fdfed9a | affected | git | b074f47e55df93832bbbca1b524c501e6fea1c0d | Unavailable | None listed |
| 3923de04c81733b30b8ed667569632272fdfed9a | affected | git | 3424c8f53bc63c87712a7fc22dc13d0cc85fb0d6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.9 | Unavailable | None listed |
| 6.12.23 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.11 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14.2 | unaffected | semver | Unavailable | 6.14.* | None listed |
| 6.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |