CVE-2022-48756: drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-06-20 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable The function performs a check on the "phy" input parameter, however, it is used before the check. Initialize the "dev" variable after the sanity check to avoid a possible NULL pointer dereference. Addresses-Coverity-ID: 1493860 ("Null pointer dereference")

Affected products

Linux kernel: from 4.3 before 4.14.265; from 4.15 before 4.19.228; from 4.20 before 5.4.176; from 5.5 before 5.10.96; from 5.11 before 5.15.19; from 5.16 before 5.16.5 — fixed in 4.14.265, 4.19.228, 5.10.96, 5.15.19, 5.16.5, 5.4.176

How to fix

Upgrade to a fixed version: Linux kernel 4.14.265, 4.19.228, 5.10.96, 5.15.19. Check the vendor advisory for mitigations.

References

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