Skip to content
Heist/ feed
High

net: strparser: fix skb_head leak in strp_abort_strp()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: strparser: fix skb_head leak in strp_abort_strp() When the stream parser is aborted, for example after a message assembly timeout, it can still hold a reference to a partially assembled message in strp->skb_head. That skb is not released in strp_abort_strp(), which leaks the partially assembled message and can be triggered repeatedly to exhaust memory. Fix this by freeing strp->skb_head and resetting the parser state in the abort path. Leave strp_stop() unchanged so final cleanup still happens in strp_done() after the work and timer have been synchronized.

Announced Source revision 1
Original source ↗

CVE-2026-46102

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-2026-46102

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": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "d6668ce0e78d23eabecef9a6bc4f0f739cb28ad3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "a470ed71c906cc8cbad0d74c9942216698911f8b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "c2e57695ec9ff9d42f23de70f3805199153d007b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "e9ae00490d474757c0f9c65073de83e6bb1e5a00",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "5327dad2ffe9c1b49881dd6d51ff3c6893847568",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "19ca9475f18f991735f98a22e735c43e95e6298d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "56082f442023db9be1a5a29d4ee361de4017c0b7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "43a0c6751a322847cb6fa0ab8cbf77a1d08bfc0a",
        "lessThan": "fe72340daaf1af588be88056faf98965f39e6032",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/strparser/strparser.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.9"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.9",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.258",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.175",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.140",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.86",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.27",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.4",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/strparser/strparser.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-46102

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40117 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement