Bug 2422764 (CVE-2025-68238) - CVE-2025-68238 kernel: mtd: rawnand: cadence: fix DMA device NULL pointer dereference
Summary: CVE-2025-68238 kernel: mtd: rawnand: cadence: fix DMA device NULL pointer der...
Keywords:
Status: NEW
Alias: CVE-2025-68238
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-16 15:03 UTC by OSIDB Bzimport
Modified: 2026-06-29 18:42 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-12-16 15:03:01 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mtd: rawnand: cadence: fix DMA device NULL pointer dereference

The DMA device pointer `dma_dev` was being dereferenced before ensuring
that `cdns_ctrl->dmac` is properly initialized.

Move the assignment of `dma_dev` after successfully acquiring the DMA
channel to ensure the pointer is valid before use.
Comment 1 Alexander B 2025-12-16 21:56:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025121635-CVE-2025-68238-fd37@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.