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CVE-2026-72121 can: bcm: add locking when updating filter and timer values

🗓️ 15 Aug 2026 05:52:59Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

KCSAN race in Linux kernel CAN BCM handler allows concurrent timer/filter updates without locking.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-72121
15 Aug 202600:00
cve
debiancve
Debian CVE
CVE-2026-72121
15 Aug 202600:00
debiancve
euvd
EUVD
EUVD-2026-58879
15 Aug 202605:52
euvd
nvd
NVD
CVE-2026-72121
15 Aug 202606:21
nvd
osv
OSV
DEBIAN-CVE-2026-72121
15 Aug 202606:21
osv
ptsecurity
Positive Technologies
PT-2026-72310
15 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/can/bcm.c"
    ],
    "versions": [
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        "status": "affected",
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      },
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      },
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      },
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      },
      {
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        "status": "affected",
        "versionType": "semver"
      },
      {
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      },
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      },
      {
        "version": "5.10.238",
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        "status": "affected",
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      },
      {
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        "status": "affected",
        "versionType": "semver"
      },
      {
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        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/can/bcm.c"
    ],
    "versions": [
      {
        "version": "6.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc4",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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