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mtd: rawnand: serialize lock/unlock against other NAND operations

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: serialize lock/unlock against other NAND operations nand_lock() and nand_unlock() call into chip->ops.lock_area/unlock_area without holding the NAND device lock. On controllers that implement SET_FEATURES via multiple low-level PIO commands, these can race with concurrent UBI/UBIFS background erase/write operations that hold the device lock, resulting in cmd_pending conflicts on the NAND controller. Add nand_get_device()/nand_release_device() around the lock/unlock operations to serialize them against all other NAND controller access.

Announced Source revision 1
Original source ↗

CVE-2026-23434

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-2026-23434

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": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "28ea836cc44cb8b89c1c174707ead0c1133c60e9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "fe4a73c3dd48308149d57a10c2761e1d36ced7ba",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "ce5229e78078e437704157eb542f43a6f83b429b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "a80291e577b44593a724d6cd64c14337c78f194d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "f71ce0ae5aefe39dd5b2f996c0e08550d2153ad2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "5fd5c078af23cb353507aa522e09d557d7eaef04",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "f25446e2c28939753d3b62d34dfda49952b2557d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "92270086b7e5ada7ab381c06cc3da2e95ed17088",
        "lessThan": "bab2bc6e850a697a23b9e5f0e21bb8c187615e95",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/mtd/nand/raw/nand_base.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.7",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.253",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.203",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.167",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.130",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.78",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.20",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.10",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/mtd/nand/raw/nand_base.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-23434

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#39849 · Revision 1
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Publisher date
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