iio: adc: ti-ads1119: fix PM reference leak in buffer preenable

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64499
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:35 UTC
Updated2026-07-25 10:17:35 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: iio: adc: ti-ads1119: fix PM reference leak in buffer preenable ads1119_triggered_buffer_preenable() resumes the device with pm_runtime_resume_and_get() before starting a conversion. If i2c_smbus_write_byte() fails, the function returns the error directly and leaves the runtime PM usage counter elevated. The matching postdisable callback is not called when preenable fails, so the reference is leaked and the device may remain runtime-active indefinitely. Store the I2C transfer result in ret and drop the runtime PM reference on failure before returning the error.

Risk And Classification

EPSS: 0.001570000 probability, percentile 0.053080000 (date 2026-07-28)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a9306887eba41c5fe7232727a8147da3d3c4f83c f40292fb19399a3c3f82de698023ba87c01e66cf git Not specified
CNA Linux Linux affected a9306887eba41c5fe7232727a8147da3d3c4f83c ffb2195921c3d629194b9807de589578df9f9cb8 git Not specified
CNA Linux Linux affected a9306887eba41c5fe7232727a8147da3d3c4f83c 6537f08100189d12bec4975000244e6ac4873c28 git Not specified
CNA Linux Linux affected a9306887eba41c5fe7232727a8147da3d3c4f83c adf4bc07f814da8329278d32600147f5a150938c git Not specified
CNA Linux Linux affected 6.11 Not specified
CNA Linux Linux unaffected 6.11 semver Not specified
CNA Linux Linux unaffected 6.12.96 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f40292fb19399a3c3f82de698023ba87c01e66cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ffb2195921c3d629194b9807de589578df9f9cb8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/adf4bc07f814da8329278d32600147f5a150938c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6537f08100189d12bec4975000244e6ac4873c28 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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