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cpufreq: imx6q: fix out-of-bounds write when probed more than once

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-90295

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-90295

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "263a35331169390f7f9ccb51d74e668610199af4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "49f2f9b1d0cc76cf221306fc707703205bd27073",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "c5135bc34ea37e9d19f758e61ac44415afb3891a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "55864b26c22cbd4b2e0d36154a8c35931c2e133b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "b166bb79b7ef36b4f1d6d1f40d1a72b2eb0a56b9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "aaa66e60c0e21d19993a95bc3718dc29eb2d3192",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "55516986a3d81325c84f2d4ae9cd03116bc63599",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4573d1d657aae28bedf3a9a1f5367e09c80d1d6",
        "lessThan": "8c3afcf27fa4582c1ab912503dc8a4ebb8dc0f82",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/cpufreq/imx6q-cpufreq.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.14"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.14",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/cpufreq/imx6q-cpufreq.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90295

Source reference: /cveMetadata/cveId

Publisher severity

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Event
#36651 · Revision 1
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