HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80605
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:44 UTC
Updated2026-08-28 08:16:44 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait() In picolcd_send_and_wait(), an integer overflow of the signed loop counter 'k' can theoretically lead to a NULL pointer dereference of 'raw_data'. If the loop executes more than INT_MAX times, 'k' becomes negative, making the condition 'k < size' true even when 'size' is 0. Change the type of 'k' to 'unsigned int' to prevent the overflow and eliminate the out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. [[email protected]: extended hash length]

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 42dc0b7b55fe0499fc09183f34a1c46d1dcccf77 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 48caee2c106b03301c72fe389ebff00d852c58d5 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 dc176447c7279435c46735db7da81aed1ec25cc2 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 a02d5d7ad7ae5fa3756b8332f7350e973085dcb3 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 d354e523c6f740db758cafcd4c11bb7913285ed8 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 ef649703dce0df1364fcec3cdad9b32d1c522939 git Not specified
CNA Linux Linux affected fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205 0021eb09041f021c079be1022934a280f7f176c0 git Not specified
CNA Linux Linux affected 3.7 Not specified
CNA Linux Linux unaffected 3.7 semver Not specified
CNA Linux Linux unaffected 5.10.261 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.212 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a02d5d7ad7ae5fa3756b8332f7350e973085dcb3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/42dc0b7b55fe0499fc09183f34a1c46d1dcccf77 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0021eb09041f021c079be1022934a280f7f176c0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/48caee2c106b03301c72fe389ebff00d852c58d5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ef649703dce0df1364fcec3cdad9b32d1c522939 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dc176447c7279435c46735db7da81aed1ec25cc2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d354e523c6f740db758cafcd4c11bb7913285ed8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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