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CVE-2026-74493 net/smc: fix socket use-after-free during link group termination

🗓️ 15 Aug 2026 12:27:21Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 46 Views

Linux kernel smc use-after-free in __smc_lgr_terminate when close races link group termination.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-74493
15 Aug 202612:27
attackerkb
circl
Circl
CVE-2026-74493
17 Aug 202616:30
circl
cve
CVE
CVE-2026-74493
15 Aug 202612:27
cve
debian
Debian
[SECURITY] [DSA 6466-1] linux security update
25 Aug 202620:09
debian
debiancve
Debian CVE
CVE-2026-74493
15 Aug 202612:27
debiancve
nessus
Tenable Nessus
Debian dsa-6466 : ata-modules-6.12.101+deb13-armmp-di - security update
25 Aug 202600:00
nessus
nessus
Tenable Nessus
Photon OS 5.0: Linux PHSA-2026-5.0-92-0952
12 Aug 202600:00
nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-74493
15 Aug 202600:00
nessus
euvd
EUVD
EUVD-2026-59686
15 Aug 202612:27
euvd
nvd
NVD
CVE-2026-74493
15 Aug 202613:17
nvd
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/smc/smc_core.c"
    ],
    "versions": [
      {
        "version": "69318b5215f2dc32c345a3d65b98b4b1bf29c007",
        "lessThan": "ff44f2df57fb5560bdc75eb977867643e764a262",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "69318b5215f2dc32c345a3d65b98b4b1bf29c007",
        "lessThan": "9fb17c95b8f0683570fca1fb2792264147af937a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "69318b5215f2dc32c345a3d65b98b4b1bf29c007",
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        "status": "affected",
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      },
      {
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        "status": "affected",
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      },
      {
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        "status": "affected",
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      },
      {
        "version": "69318b5215f2dc32c345a3d65b98b4b1bf29c007",
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        "status": "affected",
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      },
      {
        "version": "69318b5215f2dc32c345a3d65b98b4b1bf29c007",
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      },
      {
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        "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/smc/smc_core.c"
    ],
    "versions": [
      {
        "version": "5.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.265",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.216",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.183",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Aug 2026 16:37Current
CVSS 3.19.8
EPSS0.005
46