Input: synaptics-rmi4 - zero report size on F54 work error

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80570
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-26 15:17:12 UTC
Updated2026-08-27 06:17:42 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - zero report size on F54 work error In rmi_f54_work(), if an error occurs during report request or command verification, the code jumped directly to the 'error' label, bypassing the 'abort' label where f54->report_size was normally zeroed out. This left f54->report_size containing its previous successful payload size. If a user then altered the V4L2 format to a smaller size, and a subsequent run failed, rmi_f54_buffer_queue() would copy the stale, larger payload size into the shrunken V4L2 buffer, causing a heap buffer overflow. Fix this by merging the 'abort' and 'error' labels into a single 'out' exit path, and ensuring that f54->report_size is always set to 0 on failure by checking for error and zeroing the local report_size first.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001340000 probability, percentile 0.032240000 (date 2026-08-27)

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

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d 62079c17ec07d64362bec367ee7a525b0dbf6bf9 git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d 79521ed3cc9ea48476666ccacf45ecd6954b29a4 git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d c669c64ab71afa7b467c4d7e18f6a05e96b97a1f git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d 77749685e55da19b187df215b5da4080842ca5c7 git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d c6cfda79f26c69e97db9805808c3b44d02227b4b git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d b28593a05afdd812b590e1045b5bd862a5869225 git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d 88c8174d72900d77fbdf2f527d54b6ff2da876a8 git Not specified
CNA Linux Linux affected 3a762dbd5347514c3cb2ac756a92a3d1c7646a2d dc76c3c8e8ad09362b8c1561f3928288c15cba2e git Not specified
CNA Linux Linux affected 4.9 Not specified
CNA Linux Linux unaffected 4.9 semver Not specified
CNA Linux Linux unaffected 5.10.266 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.217 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.184 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.153 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.105 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.46 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.10 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c6cfda79f26c69e97db9805808c3b44d02227b4b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/77749685e55da19b187df215b5da4080842ca5c7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/88c8174d72900d77fbdf2f527d54b6ff2da876a8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dc76c3c8e8ad09362b8c1561f3928288c15cba2e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b28593a05afdd812b590e1045b5bd862a5869225 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c669c64ab71afa7b467c4d7e18f6a05e96b97a1f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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