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CVE-2026-90281— phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend

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： phy: qcom: snps-femto-v2：修复早期运行时挂起时可能出现的空指针解引用问题 问题描述： 在创建 PHY 之前，必须启用运行时电源管理（Runtime PM）。这是因为 函数仅在该父设备上已经启用了运行时电源管理时，才会为 PHY 设备启用运行时 PM。然而，运行时 PM 回调函数会解引用 实例，而该实例在 PHY 创建之前尚未就绪。这导致了一个时间窗口：在此期间，挂起回调可能会触发空指针解引用错误。 修复方案： 在启用运行时 PM 之前，使用 获取一个

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1598 · Phishing for Information

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 0d75f508a9d56133a2834215959cde4605c804d1< 0c5c08c94dd64c05679970d4eed8b06d36a889a8 affected
0d75f508a9d56133a2834215959cde4605c804d1< 1027b1d4e29756dfbf74ef8743456a1efa3679f0 affected
0d75f508a9d56133a2834215959cde4605c804d1< 34293f5a8982a06c40af69c8c7c856b5837ac652 affected
0d75f508a9d56133a2834215959cde4605c804d1< 3ddf41938fee3d148a170c31e76b0515a522ef7e affected
0d75f508a9d56133a2834215959cde4605c804d1< 82cb1aedf4bdb279cf8853fe8f39bec4e6cffa0a affected
0d75f508a9d56133a2834215959cde4605c804d1< 61749681e4a3629ec20b04ba2443b91016af3d2f affected
0d75f508a9d56133a2834215959cde4605c804d1< b85bbec72fa813b60e093c6bb36ae232b9b0eb5e affected
0d75f508a9d56133a2834215959cde4605c804d1< c271a6926ea7d3c9566b033d63fd4e8c488dc860 affected
… +10 more rows
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I. Basic Information for CVE-2026-90281

Vulnerability Information
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Vulnerability Title
phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: phy: qcom: snps-femto-v2: Fix possible NULL-deref on early runtime suspend Runtime PM must be enabled before creating the PHY, since phy_create() only enables runtime PM on the PHY device if it is already enabled on this parent device. However, the runtime PM callbacks dereference the hsphy instance, which is not yet ready, leaving a window where a suspend callback may trigger a NULL pointer dereference. Take a runtime PM usage reference with pm_runtime_get_noresume() before enabling runtime PM and release it once the PHY has been created, so that no runtime suspend can run before the PHY is ready. This also prevents a short window where an unnecessary runtime suspend can occur. Use the devres-managed version to ensure PM runtime is symmetrically disabled during driver removal for proper cleanup.
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 0d75f508a9d56133a2834215959cde4605c804d1 ~ 0c5c08c94dd64c05679970d4eed8b06d36a889a8 -
Linux Linux 5.9 -

II. Public POCs for CVE-2026-90281

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III. Intelligence Information for CVE-2026-90281

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Patches & Fixes for CVE-2026-90281 (8)

Same Patch Batch · Linux · 2026-09-17 · 600 CVEs total

CVE-2026-92489 9.8 CRITICAL xfrm: Fix skb double-free in xfrm_dev_direct_output()
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
CVE-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
CVE-2026-90110 9.4 CRITICAL inetpeer: randomize RB-tree node comparison using SipHash
CVE-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90230 9.1 CRITICAL nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90286 8.8 HIGH drm/amdgpu/gfx6: Use PFP on the compute queues too
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90162 8.8 HIGH ksmbd: defer publishing granted locks to prevent UAF/double-free race
CVE-2026-90379 8.8 HIGH wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90371 8.8 HIGH wifi: mt76: fix RXDMAD_C buffer recycling race

Showing top 20 of 600 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-90281

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