crypto: atmel-sha204a - Fix potential UAF and memory leak in remove path

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Summary

CVECVE-2026-46075
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:28 UTC
Updated2026-06-01 17:17:22 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: crypto: atmel-sha204a - Fix potential UAF and memory leak in remove path Unregister the hwrng to prevent new ->read() calls and flush the Atmel I2C workqueue before teardown to prevent a potential UAF if a queued callback runs while the device is being removed. Drop the early return to ensure sysfs entries are removed and ->hwrng.priv is freed, preventing a memory leak.

Risk And Classification

EPSS: 0.000320000 probability, percentile 0.097350000 (date 2026-06-04)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected da001fb651b00e1deeaf24767dd691ae8152a4f5 6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5 git Not specified
CNA Linux Linux affected da001fb651b00e1deeaf24767dd691ae8152a4f5 c5a45d14234bf26e28a89e3a5dcc08336595cf11 git Not specified
CNA Linux Linux affected da001fb651b00e1deeaf24767dd691ae8152a4f5 775c00d87c385b758da9504cf053acea00e2ed40 git Not specified
CNA Linux Linux affected da001fb651b00e1deeaf24767dd691ae8152a4f5 1193c12126d39bf986a5a9214827b73707b193ab git Not specified
CNA Linux Linux affected da001fb651b00e1deeaf24767dd691ae8152a4f5 31901371ccd16b42d2f167b1018ba9ae8bd5a6c7 git Not specified
CNA Linux Linux affected da001fb651b00e1deeaf24767dd691ae8152a4f5 bab1adf3b87e4bfac92c4f5963c63db434d561c1 git Not specified
CNA Linux Linux affected 5.3 Not specified
CNA Linux Linux unaffected 5.3 semver Not specified
CNA Linux Linux unaffected 6.1.175 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.86 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/bab1adf3b87e4bfac92c4f5963c63db434d561c1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6dbeb0f788582e1ab5dfc3f41994eac0ec88c2b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1193c12126d39bf986a5a9214827b73707b193ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/775c00d87c385b758da9504cf053acea00e2ed40 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/31901371ccd16b42d2f167b1018ba9ae8bd5a6c7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c5a45d14234bf26e28a89e3a5dcc08336595cf11 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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