iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-90249
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:21 UTC
Updated2026-09-17 17:17:21 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes The IIO core does not filter duplicate writes to the event enable attribute, so writing the same value twice invokes write_event_config() twice. Enabling twice leaks a runtime PM reference, preventing the device from ever suspending again; disabling twice underflows the usage count and triggers a "Runtime PM usage count underflow" warning. Bail out early when the requested state matches the current state. While at it, switch to pm_runtime_resume_and_get() so a failed resume is propagated to userspace instead of silently marking the event enabled.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 b2d7a97d75b648a643f60d77f4d6d70161268855 git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 685d9d1e5c47e024413981fb7eddab86132b04a1 git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 56fe8e5f313a64e458bb6f8b982de925345e21a7 git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 8e76ab81319858736ccf23141e9415f9a1869337 git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 70b9482926ca92862460e659f5e5fde99ae0b4fa git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 0fc740c25c9abb25113398ebb58e2f2ce57741a7 git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 470edb012b1d9a4fba1cd59e329e60f0798c791a git Not specified
CNA Linux Linux affected 97d642e23037c5545266f9564c9b81e6db81b122 579c049b4cb6fc72ce2c505fc5334540be0efcd3 git Not specified
CNA Linux Linux affected 5.7 Not specified
CNA Linux Linux unaffected 5.7 semver Not specified
CNA Linux Linux unaffected 5.10.270 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.221 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.188 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b2d7a97d75b648a643f60d77f4d6d70161268855 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/56fe8e5f313a64e458bb6f8b982de925345e21a7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/470edb012b1d9a4fba1cd59e329e60f0798c791a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/579c049b4cb6fc72ce2c505fc5334540be0efcd3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8e76ab81319858736ccf23141e9415f9a1869337 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/70b9482926ca92862460e659f5e5fde99ae0b4fa 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0fc740c25c9abb25113398ebb58e2f2ce57741a7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/685d9d1e5c47e024413981fb7eddab86132b04a1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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