CVE-2026-80605

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

N/A
Published: August 28, 2026 at 06:48 AM UTC
Updated: August 28, 2026 at 08:32 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In 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]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.7 ≤ v < 5.10.2613.7 ≤ v < 5.15.2123.7 ≤ v < 6.1.1783.7 ≤ v < 6.12.973.7 ≤ v < 6.18.403.7 ≤ v < 6.6.1453.7 ≤ v < 7.1.53.7 ≤ v < 7.23.7fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205
Vendor states this is fixed in 0021eb09041f021c079be1022934a280f7f176c0 (fixed)
Vendor states this is fixed in 42dc0b7b55fe0499fc09183f34a1c46d1dcccf77 (fixed)
Vendor states this is fixed in 48caee2c106b03301c72fe389ebff00d852c58d5 (fixed)
Vendor states this is fixed in a02d5d7ad7ae5fa3756b8332f7350e973085dcb3 (fixed)
Vendor states this is fixed in d354e523c6f740db758cafcd4c11bb7913285ed8 (fixed)
Vendor states this is fixed in dc176447c7279435c46735db7da81aed1ec25cc2 (fixed)
Vendor states this is fixed in e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61 (fixed)
Vendor states this is fixed in ef649703dce0df1364fcec3cdad9b32d1c522939 (fixed)
Vendor states this is fixed in 3.7 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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