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usb: typec: altmode should keep reference to parent

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmode should keep reference to parent The altmode device release refers to its parent device, but without keeping a reference to it. When registering the altmode, get a reference to the parent and put it in the release function. Before this fix, when using CONFIG_DEBUG_KOBJECT_RELEASE, we see issues like this: [ 43.572860] kobject: 'port0.0' (ffff8880057ba008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.573532] kobject: 'port0.1' (ffff8880057bd008): kobject_release, parent 0000000000000000 (delayed 1000) [ 43.574407] kobject: 'port0' (ffff8880057b9008): kobject_release, parent 0000000000000000 (delayed 3000) [ 43.575059] kobject: 'port1.0' (ffff8880057ca008): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.575908] kobject: 'port1.1' (ffff8880057c9008): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.576908] kobject: 'typec' (ffff8880062dbc00): kobject_release, parent 0000000000000000 (delayed 4000) [ 43.577769] kobject: 'port1' (ffff8880057bf008): kobject_release, parent 0000000000000000 (delayed 3000) [ 46.612867] ================================================================== [ 46.613402] BUG: KASAN: slab-use-after-free in typec_altmode_release+0x38/0x129 [ 46.614003] Read of size 8 at addr ffff8880057b9118 by task kworker/2:1/48 [ 46.614538] [ 46.614668] CPU: 2 UID: 0 PID: 48 Comm: kworker/2:1 Not tainted 6.12.0-rc1-00138-gedbae730ad31 #535 [ 46.

Announced Source revision 1
Original source ↗

CVE-2024-50150

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-2024-50150

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": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "2b0b33e8a58388fa9078f0fbe9af1900e6b08879",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "2c15c4133d00f5da632fce60ed013fc31aa9aa58",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "6af43ec3bf40f8b428d9134ffa7a291aecd60da8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "87474406056891e4fdea0794e1f632b21b3dfa27",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "bee1b68cb8bcee4fd3a8bde3a4886e0b1375dc4d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "1ded6b12499e6dee9b0e1ceac633be36538f6fc2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "68a7c7fe322546be1464174c8d85874b8161deda",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8a37d87d72f0c69f837229c04d2fcd7117ea57e7",
        "lessThan": "befab3a278c59db0cc88c8799638064f6d3fd6f8",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/usb/typec/class.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.19"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.19",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.323",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.285",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.229",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.170",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.115",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.59",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.11.6",
        "versionType": "semver",
        "lessThanOrEqual": "6.11.*"
      },
      {
        "status": "unaffected",
        "version": "6.12",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/usb/typec/class.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-50150

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26790 · Revision 1
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Publisher date
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