wifi: wfx: validate MIB read length before copying to caller

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98830
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:37 UTC
Updated2026-10-21 13:21:48 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: wfx: validate MIB read length before copying to caller wfx_hif_read_mib() copies reply->length bytes from the firmware response into the caller-provided buffer without checking that reply->length does not exceed val_len. A firmware response with a length field larger than expected overruns the caller buffer and reads past the end of the reply allocation. Replace the dead -ENOMEM check with an active validation that reply->length fits within val_len before the memcpy.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f95a29d40782f4f0052a692a822de3ba044b19ff 819d4c1323e2a9b7329021d5367aa01add22b5dc git Not specified
CNA Linux Linux affected f95a29d40782f4f0052a692a822de3ba044b19ff 02886c18a340da59df57365f29009e1258bfe333 git Not specified
CNA Linux Linux affected f95a29d40782f4f0052a692a822de3ba044b19ff 71d140099165de03128c00dd129f1eab21c6a3c4 git Not specified
CNA Linux Linux affected f95a29d40782f4f0052a692a822de3ba044b19ff 7acb36fd60a3e7b858f12e69a919c3609b281408 git Not specified
CNA Linux Linux affected f95a29d40782f4f0052a692a822de3ba044b19ff ce67ebe9d8629776ce38e6995ae72fb903c828db git Not specified
CNA Linux Linux affected 5.5 Not specified
CNA Linux Linux unaffected 5.5 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.113 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.56 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.10 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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