CVE-2026-93048

🗓️ 17 Sep 2026 16:10:39Reported by LinuxType

Linux kernel mtd_add_partition() ignores MTDPART_OFS_RETAIN via BLKPG, causing undefined behavior.

Reporter	Title	Published	Views	Family All 5
Cvelist	CVE-2026-93048 mtd: part: reject MTDPART_OFS_RETAIN in mtd_add_partition()	17 Sep 202616:10	–	cvelist
Debian CVE	CVE-2026-93048	17 Sep 202616:10	–	debiancve
EUVD	EUVD-2026-82158	17 Sep 202616:10	–	euvd
NVD	CVE-2026-93048	17 Sep 202617:17	–	nvd
OSV	DEBIAN-CVE-2026-93048	17 Sep 202617:17	–	osv

Vulners

CNA

Node

linux linux_kernelRange3.2–5.10.270

linux linux_kernelRange5.11.0–5.15.221

linux linux_kernelRange5.16.0–6.1.188

linux linux_kernelRange6.2.0–6.6.157

linux linux_kernelRange6.7.0–6.12.110

linux linux_kernelRange6.13.0–6.18.52

linux linux_kernelRange6.19.0–7.2.6

linux linux_kernelRange7.3.0–7.3-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/mtd/mtdpart.c"
    ],
    "versions": [
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "701c3ae7273e1adc20db5d97c42e0139b479f16b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "6aaab2ace3f7b55733d904e5549acf8405f03642",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "181c1bff940e7d3e34ca485d37e3cdbfe409203c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "a536eb57be58442b19398b2783071007ecfb1735",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "e204e5c49a012f99638633fdbd773e3c86260053",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "398aca2f90122d5abbabff1079deaeb885fe9e40",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "c645f6dd1af2ecc70fd3578e141f2f71fa9e4eff",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1a31368bf92ef2a7da3ba379672c405bd2751df9",
        "lessThan": "b759d5bb6265419344ee9729fd0dc07ad85719d8",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/mtd/mtdpart.c"
    ],
    "versions": [
      {
        "version": "3.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.270",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.52",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/c645f6dd1af2ecc70fd3578e141f2f71fa9e4eff
git	www.git.kernel.org/stable/c/e204e5c49a012f99638633fdbd773e3c86260053
git	www.git.kernel.org/stable/c/6aaab2ace3f7b55733d904e5549acf8405f03642
git	www.git.kernel.org/stable/c/a536eb57be58442b19398b2783071007ecfb1735
git	www.git.kernel.org/stable/c/398aca2f90122d5abbabff1079deaeb885fe9e40
git	www.git.kernel.org/stable/c/b759d5bb6265419344ee9729fd0dc07ad85719d8
git	www.git.kernel.org/stable/c/701c3ae7273e1adc20db5d97c42e0139b479f16b
git	www.git.kernel.org/stable/c/181c1bff940e7d3e34ca485d37e3cdbfe409203c

17 Sep 2026 17:17Current