EUVD-2026-28703
GHSA-25rf-28xv-w8h2
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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4DescriptionNVD
In the Linux kernel, the following vulnerability has been resolved:
drm/bridge: samsung-dsim: Fix memory leak in error path
In samsung_dsim_host_attach(), drm_bridge_add() is called to add the bridge. However, if samsung_dsim_register_te_irq() or pdata->host_ops->attach() fails afterwards, the function returns without removing the bridge, causing a memory leak.
Fix this by adding proper error handling with goto labels to ensure drm_bridge_remove() is called in all error paths. Also ensure that samsung_dsim_unregister_te_irq() is called if the attach operation fails after the TE IRQ has been registered.
samsung_dsim_unregister_te_irq() function is moved without changes to be before samsung_dsim_host_attach() to avoid forward declaration.
AnalysisAI
Memory leak in the Linux kernel's samsung-dsim DRM bridge driver allows a local low-privileged user to exhaust kernel memory by repeatedly triggering error paths in samsung_dsim_host_attach() where drm_bridge_remove() is never called after a failed samsung_dsim_register_te_irq() or host attach operation. Affected systems must be running Samsung MIPI DSI display hardware with the samsung-dsim module loaded. …
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