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Input: uinput - reject requests with unreasonable number of slots

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: Input: uinput - reject requests with unreasonable number of slots When exercising uinput interface syzkaller may try setting up device with a really large number of slots, which causes memory allocation failure in input_mt_init_slots(). While this allocation failure is handled properly and request is rejected, it results in syzkaller reports. Additionally, such request may put undue burden on the system which will try to free a lot of memory for a bogus request. Fix it by limiting allowed number of slots to 100. This can easily be extended if we see devices that can track more than 100 contacts.

Announced Source revision 1
Original source ↗

CVE-2024-46745

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-2024-46745

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": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "9c6d189f0c1c59ba9a32326ec82a0b367a3cd47b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "597ff930296c4c8fc6b6a536884d4f1a7187ec70",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "51fa08edd80003db700bdaa099385c5900d27f4b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "9719687398dea8a6a12a10321a54dd75eec7ab2d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "61df76619e270a46fd427fbdeb670ad491c42de2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "a4858b00a1ec57043697fb935565fe267f161833",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "d76fc0f0b18d49b7e721c9e4975ef4bffde2f3e7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "38e7afe96c7c0ad900824911c61fdb04078033dc",
        "lessThan": "206f533a0a7c683982af473079c4111f4a0f9f5e",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/input/misc/uinput.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.36"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.36",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.19.322",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.284",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.226",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.167",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.51",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.10.10",
        "versionType": "semver",
        "lessThanOrEqual": "6.10.*"
      },
      {
        "status": "unaffected",
        "version": "6.11",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/input/misc/uinput.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-46745

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26715 · Revision 1
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Publisher date
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