CVE-2026-74519

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: don't free uninitialized dev_name on error path dt_remember_or_free_map() duplicates dev_name for each map entry. If kstrdup_const() fails, dt_free_map() frees dev_name in all num_maps entries, including entries that have not been initialized. Some pinctrl drivers, including pinctrl-imx, allocate the map with kmalloc() and leave dev_name for the core to initialize. The untouched entries therefore contain uninitialized data which is passed to kfree_const(). Reproduced on qemu's mcimx6ul-evk (pinctrl-imx)...

Affected product and versions

Product

Linux

Affected versions

>= be4c60b563edee3712d392aaeb0943a768df7023 < e3cfb22bad363bebcfd55d909e12d499cb8c5490, >= be4c60b563edee3712d392aaeb0943a768df7023 < 1586423da2739a80871ef6240016fcb9c7339bfb, >= be4c60b563edee3712d392aaeb0943a768df7023 < dec5f0a8080502908dec5e35597c7ae07d533a3b, >= be4c60b563edee3712d392aaeb0943a768df7023 < 929f6396baade89999ec8a1281232c101cbc727d, >= be4c60b563edee3712d392aaeb0943a768df7023 < 321fe3584a8298386938130d138191aa35040b75, >= be4c60b563edee3712d392aaeb0943a768df7023 < ad0ad3c228b6f76fde10f32047e0ec5fbc109dc8, >= be4c60b563edee3712d392aaeb0943a768df7023 < 9d00a5ac7cd3d32ae61140f4b8a62f136de84e7d, >= be4c60b563edee3712d392aaeb0943a768df7023 < 015b5bcbcb622b32317642be91a7f79aa5413649, >= 03f69244302d7954f42f528ea2d45903ebbf59f3, >= 77440c3a37203e3f4667d06e37f76ef3968d2d8c, >= 679c4f27b8958b65bb51d1c3dfdbf3befe4a33a3, >= f88ac1330779c5bfdd79f7d7f7d4d3343c782f92, >= f739a699db7d5a5cf39ca3ce2c84e4fe4a8f4c5d, >= 4.4.244 < 4.5, >= 4.9.244 < 4.10, >= 4.14.161 < 4.15, >= 4.19.92 < 4.20, >= 5.4.7 < 5.5, >= 5.5

Fixed versions

No verified fixed-version field is available yet

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

Not available