CVE-2016-4578: n/a vulnerability

CVE-2016-4578: sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which al...

sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 00:32 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-4578 is a Linux kernel information disclosure bug. A local user could use the ALSA timer interface to read sensitive data left in kernel stack memory. It is not described as remotely exploitable in the source bundle, but it matters on shared systems where untrusted local users exist. Exposure is most likely on Linux systems running kernels through 4.6, or vendor kernels lacking the referenced backport, where local users can access the ALSA timer interface. Treat as a routine but real kernel patching priority. It is local-only based on the sources, but could expose sensitive kernel memory on multi-user systems. Mitigation focus: Apply kernel updates from the relevant Linux vendor advisory.; Confirm the kernel includes commit e4ec8cc8039a7063e24204299b462bd1383184a5 or a vendor backport.; Prioritize shared hosts with untrusted local users..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 23, 2016, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
46529CVE reference · exploit, x_refsource_EXPLOIT-DB
https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5CVE reference · x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1335215CVE reference · x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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