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CVE-2026-31649 net: stmmac: fix integer underflow in chain mode

🗓️ 24 Apr 2026 14:45:02Reported by LinuxType 
cvelist
 cvelist🔗 www.cve.org👁 28 Views

Linux kernel fix for integer underflow in chain mode of net stmmac jumbo frames.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-31649
24 Apr 202614:45
–attackerkb
CBLMariner		CVE-2026-31649 affecting package kernel for versions less than 6.6.137.1-1
3 May 202620:52
–cbl_mariner
Circl		CVE-2026-31649
5 May 202620:00
–circl
CNNVD		Linux kernel 安全漏洞
24 Apr 202600:00
–cnnvd
CVE		CVE-2026-31649
24 Apr 202614:45
–cve
Debian		[SECURITY] [DLA 4561-1] linux-6.1 security update
2 May 202608:40
–debian
Debian		[SECURITY] [DLA 4606-1] linux security update
29 May 202616:36
–debian
Debian		[SECURITY] [DSA 6238-1] linux security update
30 Apr 202620:05
–debian
Debian		[SECURITY] [DSA 6243-1] linux security update
1 May 202619:10
–debian
Debian CVE		CVE-2026-31649
24 Apr 202614:45
–debiancve
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/stmicro/stmmac/chain_mode.c"
    ],
    "versions": [
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "513e06735f5be575b409d195822195348b164e48",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "275bdf762e82082f064e60a92448fa2ac43cf95b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "a2b68a9a476b9544ff31f1fbcd5d80867a8a5e2f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "b7b8012193fd98236d7ae05d4b553f010a77b2ef",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "2c91b39912278d0878f9ba60ba04d2518b18a08d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "6fca757c20396dc2e604dcc61922264e9e3dc803",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "10d12b9240ebf96c785f0e2e4228318cd5f3a3eb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "286a837217204b1ef105e3a554d0757e4fdfaac1",
        "lessThan": "51f4e090b9f87b40c21b6daadb5c06e6c0a07b67",
        "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/net/ethernet/stmicro/stmmac/chain_mode.c"
    ],
    "versions": [
      {
        "version": "3.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.253",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.169",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.135",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.82",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.23",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.13",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:12Current
CVSS 3.19.8
EPSS0.00406
linux kernelstmmac chain modeinteger underflowjumbo framesmemory disclosuredirect memory access
28