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CVE-2026-90295— cpufreq: imx6q: fix out-of-bounds write when probed more than once

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，以下漏洞已得到修复： cpufreq: imx6q: 修复在多次探测（probe）时发生的越界写入问题 数组在每次探测（probe）时都会重新分配，其大小根据 ARM OPP（Operating Performance Points）的数量确定： 然而，该数组是通过 进行填充的，而 具有静态存储（static storage），且从未被重置。当驱动程序在取消绑定（unbind）后再次绑定（rebind）时，索引会从上一次探测停止的位置继续，从而向新分配的数组末尾之外写入数据。 在 QEMU

AI Predicted 5.5 Difficulty: Hard EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< 263a35331169390f7f9ccb51d74e668610199af4 affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< 49f2f9b1d0cc76cf221306fc707703205bd27073 affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< c5135bc34ea37e9d19f758e61ac44415afb3891a affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< 55864b26c22cbd4b2e0d36154a8c35931c2e133b affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9 affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< aaa66e60c0e21d19993a95bc3718dc29eb2d3192 affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< 55516986a3d81325c84f2d4ae9cd03116bc63599 affected
b4573d1d657aae28bedf3a9a1f5367e09c80d1d6< 8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82 affected
… +10 more rows
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I. Basic Information for CVE-2026-90295

Vulnerability Information
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Vulnerability Title
cpufreq: imx6q: fix out-of-bounds write when probed more than once
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: imx6q: fix out-of-bounds write when probed more than once imx6_soc_volt is allocated fresh on every probe, sized to the number of ARM OPPs: imx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt), GFP_KERNEL); but it is filled through soc_opp_count, which has static storage and is never reset. A second bind after an unbind keeps indexing from where the first one stopped, and writes past the end of the new array. Unbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN: BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34 Write of size 4 at addr c5e90480 by task binder/73 imx6q_cpufreq_probe from platform_probe+0x88/0xe4 platform_probe from really_probe+0x108/0x384 bind_store from kernfs_fop_write_iter+0x1b4/0x28c The write lands one u32 past the end of the allocation. soc_opp_count is only read a few lines below the loop that fills it, so it never needed static storage. Make it a local.
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 b4573d1d657aae28bedf3a9a1f5367e09c80d1d6 ~ 263a35331169390f7f9ccb51d74e668610199af4 -
Linux Linux 3.14 -

II. Public POCs for CVE-2026-90295

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III. Intelligence Information for CVE-2026-90295

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Patches & Fixes for CVE-2026-90295 (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

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