漏洞信息
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Vulnerability Title
OP-TEE has missing OPTEE_MSG_ATTR_TYPE_MASK in cleanup_shm_refs() leaks mobj references
Vulnerability Description
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.3.0 and prior to version 4.11.0, a resource leak exists in OP-TEE’s shared memory cleanup logic because the function `cleanup_shm_refs()` in `core/tee/entry_std.c` fails to apply a required bitmask (`OPTEE_MSG_ATTR_TYPE_MASK`) to parameter attributes. When processing non-contiguous memory parameters from a normal-world caller, the system fails to match the attribute type in its internal switch statement and skips the necessary mobj_put() call. This results in a persistent reference leak of `mobj_reg_shm` objects, which remain on internal lists with dangling refcounts. This affects non-FF-A configurations that support non-contiguous, non-secure shared memory. Over time, these accumulated leaks progressively consume the secure-world heap, degrading the system's ability to service trusted application operations and eventually requiring a reboot to recover. Version 4.11.0 contains a patch. No known workarounds are available.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
Vulnerability Type
不加限制或调节的资源分配
Vulnerability Title
OP-TEE optee_os 资源管理错误漏洞
Vulnerability Description
OP-TEE optee_os是OP-TEE的安全操作系统。 OP-TEE optee_os 3.3.0版本至4.11.0之前版本存在资源管理错误漏洞,该漏洞源于共享内存清理逻辑中存在资源泄漏,因为函数cleanup_shm_refs()未能对参数属性应用所需的位掩码,导致mobj_reg_shm对象持久引用泄漏,逐渐消耗安全世界堆空间,最终需要重启恢复。
CVSS Information
N/A
Vulnerability Type
N/A