Bug 2373468 (CVE-2022-50130) - CVE-2022-50130 kernel: staging: fbtft: core: set smem_len before fb_deferred_io_init call
Summary: CVE-2022-50130 kernel: staging: fbtft: core: set smem_len before fb_deferred_...
Keywords:
Status: NEW
Alias: CVE-2022-50130
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-18 12:04 UTC by OSIDB Bzimport
Modified: 2025-08-20 14:04 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-18 12:04:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

staging: fbtft: core: set smem_len before fb_deferred_io_init call

The fbtft_framebuffer_alloc() calls fb_deferred_io_init() before
initializing info->fix.smem_len.  It is set to zero by the
framebuffer_alloc() function.  It will trigger a WARN_ON() at the
start of fb_deferred_io_init() and the function will not do anything.
Comment 1 Avinash Hanwate 2025-06-20 02:37:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061814-CVE-2022-50130-b9e9@gregkh/T
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