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CVE-2026-74436 rxrpc: serialize kernel accept preallocation with socket teardown

🗓️ 15 Aug 2026 05:59:34Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

rxrpc kernel preallocation reads freed backlog pointer due to race with socket teardown, causing use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-74436
15 Aug 202605:59
attackerkb
circl
Circl
CVE-2026-74436
17 Aug 202615:50
circl
cve
CVE
CVE-2026-74436
15 Aug 202605:59
cve
debian
Debian
[SECURITY] [DLA 4745-1] linux-6.12 security update
18 Aug 202610:51
debian
debiancve
Debian CVE
CVE-2026-74436
15 Aug 202605:59
debiancve
nessus
Tenable Nessus
Debian dla-4745 : ata-modules-6.12.100+deb12-armmp-di - security update
18 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-2026-74436
15 Aug 202600:00
nessus
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
4 Sep 202600:00
oraclelinux
euvd
EUVD
EUVD-2026-59583
15 Aug 202605:59
euvd
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/rxrpc/call_accept.c"
    ],
    "versions": [
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
        "lessThan": "d6207326b4ca0ae1041281b6af9df53f8080669a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
        "lessThan": "11b429b84c87cb5a0152f14e7d6cb649ed363901",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "00e907127e6f86d0f9b122d9b4347a8aa09a8b61",
        "lessThan": "dc175389b18c29a5303ee83169ec653adfae3e17",
        "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/rxrpc/call_accept.c"
    ],
    "versions": [
      {
        "version": "4.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.266",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.217",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.184",
        "lessThanOrEqual": "6.1.*",
        "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": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 Aug 2026 12:47Current
CVSS 3.19.8
EPSS0.00399
34