CVE-2025-38630

In the Linux kernel, the following vulnerability has been resolved: fbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref fb_add_videomode() can fail with -ENOMEM when its internal kmalloc() cannot allocate a struct fb_modelist. If that happens, the modelist stays empty but the driver continues to register. Add a check for its return value to prevent poteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 ("fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var").

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/40f0a51f6c54d46a94b9f1180339ede7ca7ee190	Patch
https://git.kernel.org/stable/c/49377bac9e3bec1635065a033c9679214fe7593e	Patch
https://git.kernel.org/stable/c/4b5d36cc3014986e6fac12eaa8433fe56801d4ce	Patch
https://git.kernel.org/stable/c/69373502c2b5d364842c702c941d1171e4f35a7c	Patch
https://git.kernel.org/stable/c/ac16154cccda8be10ee3ae188f10a06f3890bc5d	Patch
https://git.kernel.org/stable/c/cca8f5a3991916729b39d797d01499c335137319	Patch
https://git.kernel.org/stable/c/da11e6a30e0bb8e911288bdc443b3dc8f6a7cac7	Patch
https://git.kernel.org/stable/c/f00c29e6755ead56baf2a9c1d3c4c0bb40af3612	Patch
https://git.kernel.org/stable/c/f060441c153495750804133555cf0a211a856892	Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-08-22 16:15

Updated : 2026-01-07 16:34

NVD link : CVE-2025-38630

Mitre link : CVE-2025-38630

CVE.ORG link : CVE-2025-38630

JSON object : View

Products Affected

debian

debian_linux

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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If that happens, the modelist stays empty but\nthe driver continues to register. Add a check for its return value to prevent\npoteintial null-ptr-deref, which is similar to the commit 17186f1f90d3 (\"fbdev:\nFix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var\")."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fbdev: imxfb: Comprobar fb_add_videomode para evitar la desreferencia de PTR nula. fb_add_videomode() puede fallar con -ENOMEM cuando su funci\u00f3n interna kmalloc() no puede asignar una estructura fb_modelist. En tal caso, la estructura de modelist permanece vac\u00eda, pero el controlador contin\u00faa registr\u00e1ndose. Se ha a\u00f1adido una comprobaci\u00f3n de su valor de retorno para evitar una posible desreferencia de PTR nula, similar al commit 17186f1f90d3 (\"fbdev: Corregir do_register_framebuffer para evitar la desreferencia de PTR nula en fb_videomode_to_var\")."}], "lastModified": "2026-01-07T16:34:15.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "798403DD-A319-4E9B-B709-E6E985ADD4B4", "versionEndExcluding": "5.4.297", "versionStartIncluding": "3.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D0D21C35-EB8A-488A-BBF9-403E4817E5DD", "versionEndExcluding": "5.10.241", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD9E597F-3DDE-4D7E-976C-463D0611F13F", "versionEndExcluding": "5.15.190", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E5B1B93-C244-4B54-B3AB-12C2635A443B", "versionEndExcluding": "6.1.148", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DD6EDB96-08AC-49D8-A1A9-4D2140C49BC7", "versionEndExcluding": "6.6.102", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA7AA5E6-4376-4A85-A021-6ACC5FF801C3", "versionEndExcluding": "6.12.42", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5890C690-B295-40C2-9121-FF5F987E5142", "versionEndExcluding": "6.15.10", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58182352-D7DF-4CC9-841E-03C1D852C3FB", "versionEndExcluding": "6.16.1", "versionStartIncluding": "6.16"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}