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CVE-2026-43503 net: skbuff: propagate shared-frag marker through frag-transfer helpers

🗓️ 23 May 2026 11:44:01Reported by LinuxType 
cvelist
 cvelist🔗 www.cve.org👁 10 Views

CVE-2026-43503: skb_try_coalesce preserves the shared-frag flag when transferring paged frags.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-43503
23 May 202611:44
–attackerkb
Circl		CVE-2026-43503
25 May 202600:01
–circl
CNNVD		Linux kernel 安全漏洞
23 May 202600:00
–cnnvd
CVE		CVE-2026-43503
23 May 202611:44
–cve
Debian		[SECURITY] [DLA 4606-1] linux security update
29 May 202616:36
–debian
Debian		[SECURITY] [DLA 4607-1] linux-6.1 security update
29 May 202616:39
–debian
Debian		[SECURITY] [DSA 6295-1] linux security update
23 May 202619:50
–debian
Debian		[SECURITY] [DSA 6306-1] linux security update
28 May 202613:39
–debian
Debian CVE		CVE-2026-43503
23 May 202611:44
–debiancve
Tenable Nessus		Debian dla-4606 : ata-modules-5.10.0-43-armmp-di - security update
3 Jun 202600:00
–nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/gro.c",
      "net/core/skbuff.c",
      "net/ipv4/tcp_output.c"
    ],
    "versions": [
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "fbeab9555564a1b98e8582cd106dfe46c4606991",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "179f1852bdedc300e373e807cc102cd81feff196",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "12401fcfb01f53ccc63ab0a3246570fe8f3105ee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "989214c66884d70716d83dc1d0bf5e16287bf349",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "fc6eb39c55e97df2f94ad974b8a5bbcd019da2c8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "ff375cc75f9167168db38e0464a482d5fbc8d81d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "9bc9d6d6967a2239aa57af2aa53554eddd640d20",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cef401de7be8c4e155c6746bfccf721a4fa5fab9",
        "lessThan": "48f6a5356a33dd78e7144ae1faef95ffc990aae0",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/core/gro.c",
      "net/core/skbuff.c",
      "net/ipv4/tcp_output.c"
    ],
    "versions": [
      {
        "version": "3.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.257",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.208",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.174",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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14 Jun 2026 17:45Current
CVSS 3.18.8
EPSS0.00013
linux kernelshared frag flagpaged fragmentsskb coalescingesp decryptionvulnerability
10