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tipc: fix memory leak in tipc_link_xmit

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: tipc: fix memory leak in tipc_link_xmit In case the backlog transmit queue for system-importance messages is overloaded, tipc_link_xmit() returns -ENOBUFS but the skb list is not purged. This leads to memory leak and failure when a skb is allocated. This commit fixes this issue by purging the skb list before tipc_link_xmit() returns.

Announced Source revision 1
Original source ↗

CVE-2025-37757

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-2025-37757

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": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "84895f5ce3829d9fc030e5ec2d8729da4c0c9d08",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "d4d40e437adb376be16b3a12dd5c63f0fa768247",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "ed06675d3b8cd37120b447646d53f7cd3e6fcd63",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "24e6280cdd7f8d01fc6b9b365fb800c2fb7ea9bb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "09c2dcda2c551bba30710c33f6ac678ae7395389",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "7c5957f7905b4aede9d7a559d271438f3ca9e852",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "d0e02d3d27a0b4dcb13f954f537ca1dd8f282dcf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "a40cbfbb8f95c325430f017883da669b2aa927d4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "365ad353c2564bba8835290061308ba825166b3a",
        "lessThan": "69ae94725f4fc9e75219d2d69022029c5b24bc9a",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/tipc/link.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.11"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.11",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.293",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.237",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.181",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.135",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.88",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.24",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.13.12",
        "versionType": "semver",
        "lessThanOrEqual": "6.13.*"
      },
      {
        "status": "unaffected",
        "version": "6.14.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.14.*"
      },
      {
        "status": "unaffected",
        "version": "6.15",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/tipc/link.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-37757

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30469 · Revision 1
Added to Heist Feed
Publisher date
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