CVE-2022-50261

In the Linux kernel, the following vulnerability has been resolved: drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. A proposed warning in clang aims to catch these at compile time, which reveals: drivers/gpu/drm/sti/sti_hda.c:637:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_connector *, struct drm_display_mode *)' with an expression of type 'int (struct drm_connector *, struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict] .mode_valid = sti_hda_connector_mode_valid, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/sti/sti_dvo.c:376:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_connector *, struct drm_display_mode *)' with an expression of type 'int (struct drm_connector *, struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict] .mode_valid = sti_dvo_connector_mode_valid, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/sti/sti_hdmi.c:1035:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_connector *, struct drm_display_mode *)' with an expression of type 'int (struct drm_connector *, struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict] .mode_valid = sti_hdmi_connector_mode_valid, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ->mode_valid() in 'struct drm_connector_helper_funcs' expects a return type of 'enum drm_mode_status', not 'int'. Adjust the return type of sti_{dvo,hda,hdmi}_connector_mode_valid() to match the prototype's to resolve the warning and CFI failure.

• https://git.kernel.org/stable/c/04371a75a58422a301a9ff9ae3babd310ac3bb3fPatch
• https://git.kernel.org/stable/c/0ad811cc08a937d875cbad0149c1bab17f84ba05Patch
• https://git.kernel.org/stable/c/511b48ee8e4aec2d03d2af06b363d9eb3230b017Patch
• https://git.kernel.org/stable/c/6e3c4d3fa5d458d685561ecbaf8daa9dba14979ePatch
• https://git.kernel.org/stable/c/8f9941dea3a70b73f2063f9dcc4aaae6af03c5baPatch
• https://git.kernel.org/stable/c/a075c21ee026f4a74f9fce5928ea3c8d18a8af13Patch
• https://git.kernel.org/stable/c/b2c92b2a3801b09b709cbefd9a9e4944b72400bfPatch
• https://git.kernel.org/stable/c/b4307c7d35e346b909edfdc1f280902150570bb6Patch
• https://git.kernel.org/stable/c/e578b0906b6a81479cd5b5b6c848a7096addf5e9Patch

Published

Sep 15, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2022-50255In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2022-50256In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2022-50257In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50258In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2022-50259In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2022-50260In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50262In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50263In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50264In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50265In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50266In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2022-50267In the Linux kernel, the following vulnerability has been re…5.5