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i2c: imx: Cancel hrtimer before clearing slave pointer

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: i2c: imx: Cancel hrtimer before clearing slave pointer In i2c_imx_unreg_slave(), the slave pointer is set to NULL after disabling interrupts. However, a pending interrupt might already have started the hrtimer (i2c_imx_slave_timeout) before the pointer was cleared. If the hrtimer fires after i2c_imx->slave is set to NULL, the timer callback i2c_imx_slave_finish_op() will call i2c_imx_slave_event() with a NULL slave pointer, which results in a use-after-free / NULL pointer dereference. Fix by canceling the hrtimer and waiting for it to complete after disabling interrupts, before clearing the slave pointer.

Announced Source revision 1
Original source ↗

CVE-2026-74461

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-2026-74461

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": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "e3da77bdb4015051656bb472c295656bbea03b6f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "470fe15fb3bb2eba6629be301ca7e991ee3cfb7e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "a8a1f9ac3d763e721586f15479ef9140b216ddf3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "753060f2b77ff2f386addbd3ecadb95b9f90cddd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "affd62f5719a78135b7441aa49c8cab3c3b5e838",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "dab4762ee7f3fd0a01980d5407ba48d0261d3bff",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7414cd6923fd7f78e57086fc964ba2dc25db5c1",
        "lessThan": "6ac7702b6cc2b94aaed9ef2d95bfbefcdc90061f",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/i2c/busses/i2c-imx.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.11"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.11",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.183",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.151",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.103",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.44",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/i2c/busses/i2c-imx.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-74461

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#33160 · Revision 1
Added to Heist Feed
Publisher date
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