CVE-2022-50130

staging: fbtft: core: set smem_len before fb_deferred_io_init call

MEDIUM

5.5

CVSS Score

Published: June 18, 2025 at 11:02 AM UTC

Updated: June 17, 2026 at 05:22 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.18.3 ≤ v < 5.18.185.19 ≤ v < 5.19.25.19 ≤ v < 6.05.18.3 5.196a9ae2fe887042f76fd3d334349e64e8ab3c55a2856082f021a28221db2c32bd0531614a8382be67e79b2b2aadeffe1db54a6b569b9b621575c3eb07

Vendor states this is fixed in 4178bfa3fc9de556dfe248a6eabe29280f0ffda5 (fixed)

Vendor states this is fixed in 5185c319e8ea67657e0d3edd520a7276516c506a (fixed)

Vendor states this is fixed in 6ae6abe240306f878557d6eadd950a2e2561f59f (fixed)

Vendor states this is fixed in 81e878887ff82a7dd42f22951391069a5d520627 (fixed)

Vendor states this is fixed in 5.18.18 (unaffected)

Vendor states this is fixed in 5.19 (unaffected)

Vendor states this is fixed in 5.19.2 (unaffected)

Vendor states this is fixed in 6.0 (unaffected)