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CVE-2026-93145— clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： clk: qcom: gdsc: 在 gdsc_unregister() 中拆分子域级别的 genpd 会移除 OF provider 条目并断开父域/子域之间的连接，但从未对 注册的各个 结构体调用 ： 这导致全局 中残留了悬空条目。在发生 provider 解绑/重绑周期（例如启动早期延迟探测的重放、拥有 GDSC 的时钟驱动模块的真实卸载，或 OF-overlay 的拆除）之后，下一次 将尝试重新注册一个仍存在于列表中的名称，导致 返回 。 既然正在处理此问题，顺便调

AI Predicted 5.3 Difficulty: Hard

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< 418d2f0a32b2a9ceb656a88aa9139408a9b7b517 affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< 6333cbf7e86df9797b342ce64ae7d32ba46d8d10 affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24 affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< 0f4733f5fc6b6b62750619f30c18730922a1dbdb affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< 6b9228a43963bcd4db92deb467375345132c29b3 affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< f60f495858379dc70e87c6898d761a9db98739ff affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< 40bd77fa2857ccfa77b885b77d44cea406f24a4c affected
45dd0e55317ccb27fe8eae639275c2b3a2fb52e5< 86b23609d5e17a770d03037e53c6a443e742a6e6 affected
… +10 more rows
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I. Basic Information for CVE-2026-93145

Vulnerability Information
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Vulnerability Title
clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister() gdsc_unregister() removes the OF provider entry and tears down the parent/subdomain wiring, but never calls pm_genpd_remove() on the individual generic_pm_domain structures registered by gdsc_init(): void gdsc_unregister(struct gdsc_desc *desc) { struct device *dev = desc->dev; size_t num = desc->num; gdsc_pm_subdomain_remove(desc, num); of_genpd_del_provider(dev->of_node); } That leaves dangling entries on the global gpd_list. After a provider unbind/rebind cycle (deferred-probe replay during early boot, real module unload of a clk driver that owns GDSCs, or an OF-overlay tear- down) the next gdsc_init() will end up trying to re-register a name that is still in the list and pm_genpd_init() returns -EEXIST. While we are here, flip the order so the consumer-facing OF provider entry is the first thing removed -- otherwise a fresh of_genpd_get_from_provider() call racing with the teardown could attach to a domain that is mid-removal. Iterate the scs[] array and pm_genpd_remove() each registered domain after the subdomain links are torn down. The regulators stay devm- managed (devm_regulator_get_optional() in gdsc_register()), so the release happens automatically when the underlying device is unbound; just the genpd accounting needs to be undone explicitly.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 ~ 418d2f0a32b2a9ceb656a88aa9139408a9b7b517 -
Linux Linux 4.4 -

II. Public POCs for CVE-2026-93145

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III. Intelligence Information for CVE-2026-93145

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Patches & Fixes for CVE-2026-93145 (8)

Same Patch Batch · Linux · 2026-09-17 · 602 CVEs total

CVE-2026-90255 Bluetooth: hci_conn: fix the SCO setup context lifetime
CVE-2026-90238 media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
CVE-2026-90240 iommu/vt-d: Flush context cache with correct SID when tearing down aliases
CVE-2026-90239 media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
CVE-2026-90241 iommu/vt-d: Tear down scalable-mode context on probe failure
CVE-2026-90243 iommu/vt-d: Clear Present bit before tearing down copied context entry
CVE-2026-90242 iommu/vt-d: Fix iopf_refcount leak on RID domain replacement
CVE-2026-90244 iommu/dma: Restore locking around msi_page_list
CVE-2026-90245 fbdev: kyro: Validate overlay viewport coordinates
CVE-2026-90246 apparmor: fix integer overflow in verify_tags() bounds check
CVE-2026-90247 bpf: Fix mmap_lock leak in irq_work path
CVE-2026-90248 net/sched: cls_api: fix teardown of an adopted proto on insert-race loss
CVE-2026-90249 iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes
CVE-2026-90250 bpf, cgroup: Fix storage null-ptr-deref after replacing prog
CVE-2026-90251 Bluetooth: MSFT: validate evt_prefix_len against the response length
CVE-2026-90253 Bluetooth: MGMT: free the mesh send cancel command when it is cancelled
CVE-2026-90252 Bluetooth: MGMT: free the HCI command when it is cancelled
CVE-2026-90254 Bluetooth: hci_sync: free the advertising instance on the failure and cancel paths
CVE-2026-90256 Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90268 scsi: sd: Fix error handling in sd_probe() after large pool creation failure

Showing top 20 of 602 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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