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CVE-2026-64368 mm/slab: do not limit zeroing to orig_size when only red zoning is enabled

🗓️ 25 Jul 2026 08:50:21Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Slab allocator zeros only the requested size when red zoning is enabled using slub_debug_orig_size.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/slub.c"
    ],
    "versions": [
      {
        "version": "9ce67395f5a0cdec6ce152d26bfda13b98b25c01",
        "lessThan": "6256899c3a34674bba6076884aedbba49fc695e4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9ce67395f5a0cdec6ce152d26bfda13b98b25c01",
        "lessThan": "7e706d50fa119eead6376bf0ef973e8d73a96030",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9ce67395f5a0cdec6ce152d26bfda13b98b25c01",
        "lessThan": "2382971aaaef5bf85a651234c64906f59580b8be",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9ce67395f5a0cdec6ce152d26bfda13b98b25c01",
        "lessThan": "0d18ccef142f04433dfb2a0c120cf223d2b8a42c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9ce67395f5a0cdec6ce152d26bfda13b98b25c01",
        "lessThan": "648927ceb84021a25a0fbd5673740956f318d534",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/slub.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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