CVE-2026-43484 mmc: core: Avoid bitfield RMW for claim/retune flags

🗓️ 13 May 2026 15:08:30Reported by LinuxType

Linux kernel mmc core moves claimed and retune flags out of bitfield to avoid concurrent writes.

Reporter	Title	Published	Views	Family All 55
ATTACKERKB	CVE-2026-43484	13 May 202615:08	–	attackerkb
CNNVD	Linux kernel 安全漏洞	13 May 202600:00	–	cnnvd
CVE	CVE-2026-43484	13 May 202615:08	–	cve
Debian CVE	CVE-2026-43484	13 May 202615:08	–	debiancve
Oracle linux	Unbreakable Enterprise kernel security update	2 Jul 202600:00	–	oraclelinux
EUVD	EUVD-2026-30020	13 May 202618:30	–	euvd
NVD	CVE-2026-43484	13 May 202616:16	–	nvd
Tenable Nessus	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50372)	6 Jul 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-0837	16 Jun 202600:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2026-5.0-0842	9 May 202600:00	–	nessus

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/mmc/host.h"
    ],
    "versions": [
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "41dce4dae583a8ce06a7ebf4ce704c46a142957c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "bb7fc2498c3bb25fa6a91f22f4760005325cfbd5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "270277c2ab631044867adb1bd2f2433d3892de6e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "45038e03f15e992c48603fff8c6b1c9be5397ac9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "0e06cc511c61cff1591e5435a207759adcc76b6d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "d3a3caf44c8ec26f5d63dc17c1c7242effa60ebc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6c0cedd1ef9527ef13e66875746570e76a3188a7",
        "lessThan": "901084c51a0a8fb42a3f37d2e9c62083c495f824",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/mmc/host.h"
    ],
    "versions": [
      {
        "version": "4.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.167",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.78",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.19",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.9",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/45038e03f15e992c48603fff8c6b1c9be5397ac9
git	www.git.kernel.org/stable/c/bb7fc2498c3bb25fa6a91f22f4760005325cfbd5
git	www.git.kernel.org/stable/c/0e06cc511c61cff1591e5435a207759adcc76b6d
git	www.git.kernel.org/stable/c/d3a3caf44c8ec26f5d63dc17c1c7242effa60ebc
git	www.git.kernel.org/stable/c/901084c51a0a8fb42a3f37d2e9c62083c495f824
git	www.git.kernel.org/stable/c/41dce4dae583a8ce06a7ebf4ce704c46a142957c
git	www.git.kernel.org/stable/c/270277c2ab631044867adb1bd2f2433d3892de6e

13 May 2026 15:08Current

EPSS0.00114