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net: openvswitch: Fix Use-After-Free in ovs_ct_exit

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

Announced Source revision 1
Original source ↗

CVE-2024-27395

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-27395

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "2db9a8c0a01fa1c762c1e61a13c212c492752994",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "589523cf0b384164e445dd5db8d5b1bf97982424",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "35880c3fa6f8fe281a19975d2992644588ca33d3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "9048616553c65e750d43846f225843ed745ec0d4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "eaa5e164a2110d2fb9e16c8a29e4501882235137",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "edee0758747d7c219e29db9ed1d4eb33e8d32865",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "11efd5cb04a184eea4f57b68ea63dddd463158d1",
        "lessThan": "5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/openvswitch/conntrack.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.18"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.18",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.313",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.275",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.158",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.90",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.30",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.8.9",
        "versionType": "semver",
        "lessThanOrEqual": "6.8.*"
      },
      {
        "status": "unaffected",
        "version": "6.9",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/openvswitch/conntrack.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-27395

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26493 · Revision 1
Added to Heist Feed
Publisher date
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