CVE-2022-50261 Affecting kernel-obs-build package, versions <5.14.21-150500.55.124.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES155-KERNELOBSBUILD-13607643
- published17 Oct 2025
- disclosed16 Oct 2025
Introduced: 16 Oct 2025
NewCVE-2022-50261 (opens in a new tab)How to fix?
Upgrade SLES:15.5 kernel-obs-build to version 5.14.21-150500.55.124.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-obs-build package and not the kernel-obs-build package as distributed by SLES.
See How to fix? for SLES:15.5 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2022-50261.html
- https://bugzilla.suse.com/1249742
- https://git.kernel.org/stable/c/04371a75a58422a301a9ff9ae3babd310ac3bb3f
- https://git.kernel.org/stable/c/0ad811cc08a937d875cbad0149c1bab17f84ba05
- https://git.kernel.org/stable/c/511b48ee8e4aec2d03d2af06b363d9eb3230b017
- https://git.kernel.org/stable/c/6e3c4d3fa5d458d685561ecbaf8daa9dba14979e
- https://git.kernel.org/stable/c/8f9941dea3a70b73f2063f9dcc4aaae6af03c5ba
- https://git.kernel.org/stable/c/a075c21ee026f4a74f9fce5928ea3c8d18a8af13
- https://git.kernel.org/stable/c/b2c92b2a3801b09b709cbefd9a9e4944b72400bf
- https://git.kernel.org/stable/c/b4307c7d35e346b909edfdc1f280902150570bb6
- https://git.kernel.org/stable/c/e578b0906b6a81479cd5b5b6c848a7096addf5e9