CVE-2022-49733
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49733
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49733.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49733
- Related
- Published
- 2025-03-02T15:15:11Z
- Modified
- 2025-03-10T22:50:25.260819Z
- Downstream
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix race at SNDCTLDSPSYNC
There is a small race window at sndpcmosssync() that is called from OSS PCM SNDCTLDSPSYNC ioctl; namely the function calls sndpcmossmakeready() at first, then takes the paramslock 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 sndpcmossmakeready() call into the same paramslock mutex with sndpcmossmakereadylocked() variant.
- References
-
- https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0
- https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb
- https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86
- https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d
- https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36
- https://security-tracker.debian.org/tracker/CVE-2022-49733
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.148-1
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source