CVE-2026-90405
kernel: media: stm32: dcmi: fix some error handling bugs in probe()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the media: stm32: dcmi component of the Linux kernel. Improper error handling in the probe() function can lead to a null pointer dereference. This issue occurs because dma_release_channel() is called before the dcmi->dma_chan variable is properly assigned, potentially allowing a local attacker to cause a denial of service (DoS) due to system instability or crashes. Additionally, other error handling bugs could result in memory leaks.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference