CVE-2026-89890

media: go7007: defer the ALSA v4l2 put until card release

State: Published
Severity: 7.8 High
Published: Sep 16, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

media: go7007: defer the ALSA v4l2 put until card release

go7007_snd_init() already takes a v4l2_device reference for the ALSA side, but go7007_snd_remove() drops it immediately after calling snd_card_free_when_closed().

That is too early when a userspace process still has the capture PCM open. The ALSA card and its PCM callbacks remain alive until the last file is closed, so the release path can still reach struct go7007 through pcm->private_data and call go7007_snd_hw_free() after the V4L2 release path has freed the object.

Move the matching v4l2_device_put() to the ALSA card private_free callback so the existing ALSA reference covers the whole deferred card lifetime.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 1c57d1a3396b2d767d58f10dff09bb397586c714Affected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 9c4f9628b8558c87903492a777834cc5be14ded3Affected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before b7a0de398ad510426db9c8e96c516ef7abf48b0eAffected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 1c9fdd9465211432d5c0ff70caaec0be245823d5Affected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 29fe4d38fb59ec28ca656cb2dabc2b0f78e78980Affected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 0745a59945d927652d892437f9647ed6e87c0677Affected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before e6f1a1ac9b8ccabfec548aef0d0d93eaf4dba4f4Affected d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 1bd456afeb8a515137e567967069fce6f8fcd23eAffected
LinuxLinux	3.10Affected before 3.10Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.51 through 6.18.Not affected 7.2.5 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 1c57d1a3396b2d767d58f10dff09bb397586c714Affected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 9c4f9628b8558c87903492a777834cc5be14ded3Affected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before b7a0de398ad510426db9c8e96c516ef7abf48b0eAffected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 1c9fdd9465211432d5c0ff70caaec0be245823d5Affected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 29fe4d38fb59ec28ca656cb2dabc2b0f78e78980Affected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 0745a59945d927652d892437f9647ed6e87c0677Affected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before e6f1a1ac9b8ccabfec548aef0d0d93eaf4dba4f4Affected
d5d3a7cc127d096c22ad63c4ff72970e1beb22ef to before 1bd456afeb8a515137e567967069fce6f8fcd23eAffected

LinuxLinux

3.10Affected
before 3.10Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.51 through 6.18.*Not affected
7.2.5 through 7.2.*Not affected
7.3 and laterNot affected

References

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