media: av7110: prevent underflow in write_ts_to_decoder()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-54284
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-30 13:16:17 UTC
Updated2026-08-04 11:16:39 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS: 0.001360000 probability, percentile 0.034940000 (date 2026-08-06)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 6680af5be9f08d830567e9118f76d3e64684db8f git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 6606e2404ee9e20a3ae5b42fc3660d41b739ed3e git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 620b983589e0223876bf1463b01100a9c67b56ba git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 86ba65e5357bfbb6c082f68b265a292ee1bdde1d git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf ca4ce92e3ec9fd3c7c936b912b95c53331d5159c git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 423350af9e27f005611bd881b1df2cab66de943d git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 77eeb4732135c18c2fdfab80839645b393f3e774 git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf 7b93ab60fe9ed04be0ff155bc30ad39dea23e22b git Not specified
CNA Linux Linux affected fd46d16d602ab7fd53cef7ff55b9dcb0b47ad3bf eed9496a0501357aa326ddd6b71408189ed872eb git Not specified
CNA Linux Linux affected 2.6.31 Not specified
CNA Linux Linux unaffected 2.6.31 semver Not specified
CNA Linux Linux unaffected 4.14.315 4.14.* semver Not specified
CNA Linux Linux unaffected 4.19.283 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.243 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.211 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.111 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.28 6.1.* semver Not specified
CNA Linux Linux unaffected 6.2.15 6.2.* semver Not specified
CNA Linux Linux unaffected 6.3.2 6.3.* semver Not specified
CNA Linux Linux unaffected 6.4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7b93ab60fe9ed04be0ff155bc30ad39dea23e22b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/620b983589e0223876bf1463b01100a9c67b56ba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/86ba65e5357bfbb6c082f68b265a292ee1bdde1d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/77eeb4732135c18c2fdfab80839645b393f3e774 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eed9496a0501357aa326ddd6b71408189ed872eb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6606e2404ee9e20a3ae5b42fc3660d41b739ed3e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6680af5be9f08d830567e9118f76d3e64684db8f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/423350af9e27f005611bd881b1df2cab66de943d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ca4ce92e3ec9fd3c7c936b912b95c53331d5159c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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