CVE-2025-38685

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit This issue triggers when a userspace program does an ioctl FBIOPUT_CON2FBMAP by passing console number and frame buffer number. Ideally this maps console to frame buffer and updates the screen if console is visible. As part of mapping it has to do resize of console according to frame buffer info. if this resize fails and returns from vc_do_resize() and continues further. At this point console and new frame buffer are mapped and sets display vars. Despite failure still...

Affected product and versions

Product

Linux Linux, SIMATIC CN 4100, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP

Affected versions

>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 078e62bffca4b7e72e8f3550eb063ab981c36c7a, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4c4d7ddaf1d43780b106bedc692679f965dc5a3a, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 27b118aebdd84161c8ff5ce49d9d536f2af10754, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ed9b8e5016230868c8d813d9179523f729fec8c6, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 56701bf9eeb63219e378cb7fcbd066ea4eaeeb50, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cfec17721265e72e50cc69c6004fe3475cd38df2, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < af0db3c1f898144846d4c172531a199bb3ca375d, >= 2.6.12, < V5.0, >= V3.1.5, >= 2.6.13 < 5.15.190, >= 5.16 < 6.1.149, >= 6.2 < 6.6.103, >= 6.7 < 6.12.43, >= 6.13 < 6.15.11, >= 6.16 < 6.16.2, 2.6.12, 11.0

Fixed versions

5.15.190, 6.1.149, 6.6.103, 6.12.43, 6.15.11, 6.16.2

Technical data

CVSS vector

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

CWE

CWE-787