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CVE-2026-14367— zephyrproject Zephyr 竞争条件问题漏洞

一分钟漏洞结论

影响对象
zephyrproject zephyr
利用判断
尚无明确在野利用证据,仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本;无法立即升级时,限制受影响服务暴露并加强监测。

zephyrproject Zephyr是zephyrproject组织开源的一款面向物联网设备的实时操作系统。 zephyrproject Zephyr 3.2.0版本至4.4.2之前版本存在竞争条件问题漏洞,该漏洞源于drivers/i3c/i3c_ibi_workq.c中的I3C IBI子系统通过无同步的空闲列表分配工作节点,导致竞争条件,可能造成节点重复分配、丢失或指针异常,从而导致崩溃或挂起(拒绝服务),并可能导致越界写入。

CVSS 3.1 · Low EPSS 0.10% · P1

可能的 ATT&CK 技术 1 AI

T1401

影响版本矩阵 1

厂商产品 版本范围状态
zephyrproject zephyr 3.2.0< 4.4.2 affected
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一、 漏洞 CVE-2026-14367 基础信息

漏洞信息

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Vulnerability Title
I3C IBI work-node free-list data race between ISR and workqueue thread
来源: CVE Program / CVE List V5
Vulnerability Description
The I3C IBI subsystem in drivers/i3c/i3c_ibi_workq.c hands out statically-allocated work nodes through a free-list i3c_ibi_work_nodes_free implemented as a plain sys_slist_t, which provides no synchronization. The allocation helpers (i3c_ibi_work_enqueue, i3c_ibi_work_enqueue_target_irq, i3c_ibi_work_enqueue_hotjoin, i3c_ibi_work_enqueue_controller_request, i3c_ibi_work_enqueue_cb) called sys_slist_get() directly from ISR context, while the workqueue handler i3c_ibi_work_handler() returned nodes with sys_slist_append() from the workqueue thread, with no lock on either side. Because sys_slist_get() and sys_slist_append() are neither atomic nor interrupt-safe, an IBI interrupt that fires while the workqueue thread is mid-append (or a truly parallel access under CONFIG_SMP) races on the shared list. This corrupts the list linkage: a node may be handed to two consumers, a node may be lost, or the head/tail pointers may be left inconsistent so sys_slist_get() returns a stale or garbage pointer. In the double-hand-out case the subsequent memcpy(ibi_node, ibi_work, sizeof(*ibi_node)) overwrites a node still in flight; a garbage pointer turns the same memcpy into an out-of-bounds write. The race is driven by I3C bus traffic — IBIs, hot-joins, and controller-role requests originate from target devices on the bus, and I3C supports hot-joining devices. An attacker controlling an I3C peripheral on the board's chip-to-chip bus can generate high-frequency interrupts timed to collide with the free operation. Exploitation requires physical access to the bus and winning a narrow timing window; the most realistic impact is a crash or hang (denial of service), with memory corruption possible but hard to control. The fix wraps all free-list sys_slist_get()/sys_slist_append() operations in the new ibi_work_alloc()/ibi_work_free() helpers, each guarded by a k_spinlock (ibi_work_lock), closing the race across ISR and thread contexts.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
来源: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
来源: CVE Program / CVE List V5
Vulnerability Title
zephyrproject Zephyr 竞争条件问题漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
zephyrproject Zephyr是zephyrproject组织开源的一款面向物联网设备的实时操作系统。 zephyrproject Zephyr 3.2.0版本至4.4.2之前版本存在竞争条件问题漏洞,该漏洞源于drivers/i3c/i3c_ibi_workq.c中的I3C IBI子系统通过无同步的空闲列表分配工作节点,导致竞争条件,可能造成节点重复分配、丢失或指针异常,从而导致崩溃或挂起(拒绝服务),并可能导致越界写入。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
zephyrproject zephyr 3.2.0 ~ 4.4.2 -

二、漏洞 CVE-2026-14367 的公开POC

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三、漏洞 CVE-2026-14367 的情报信息

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CVE-2026-14367 补丁与修复 (1)

CVE-2026-14367 厂商安全公告 (1)

同批安全公告 · zephyrproject · 2026-08-31 · 共 5 条

CVE-2026-14696 6.5 MEDIUM zephyrproject Zephyr 资源管理错误漏洞
CVE-2026-14697 6.5 MEDIUM zephyrproject Zephyr 资源管理错误漏洞
CVE-2026-14366 6.4 MEDIUM zephyrproject Zephyr 资源管理错误漏洞
CVE-2026-14368 5.4 MEDIUM zephyrproject Zephyr 数字错误漏洞

IV. Related Vulnerabilities