github - ghsa-pmwj-r76w-m8f7

ghsa-pmwj-r76w-m8f7

Vulnerability from github

Published

2024-08-22 06:30

Modified

2024-08-22 21:31

Severity ?

3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: Add schedule points in batch ops

syzbot reported various soft lockups caused by bpf batch operations.

INFO: task kworker/1:1:27 blocked for more than 140 seconds. INFO: task hung in rcu_barrier

Nothing prevents batch ops to process huge amount of data, we need to add schedule points in them.

Note that maybe_wait_bpf_programs(map) calls from generic_map_delete_batch() can be factorized by moving the call after the loop.

This will be done later in -next tree once we get this fix merged, unless there is strong opinion doing this optimization sooner.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48939"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-834"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-22T04:15:17Z",
    "severity": "LOW"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add schedule points in batch ops\n\nsyzbot reported various soft lockups caused by bpf batch operations.\n\n INFO: task kworker/1:1:27 blocked for more than 140 seconds.\n INFO: task hung in rcu_barrier\n\nNothing prevents batch ops to process huge amount of data,\nwe need to add schedule points in them.\n\nNote that maybe_wait_bpf_programs(map) calls from\ngeneric_map_delete_batch() can be factorized by moving\nthe call after the loop.\n\nThis will be done later in -next tree once we get this fix merged,\nunless there is strong opinion doing this optimization sooner.",
  "id": "GHSA-pmwj-r76w-m8f7",
  "modified": "2024-08-22T21:31:29Z",
  "published": "2024-08-22T06:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48939"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

cve-2022-48939

Vulnerability from cvelistv5

Published

2024-08-22 03:31

Modified

2024-11-04 12:19

Severity ?

Summary

bpf: Add schedule points in batch ops

References

▼	URL	Tags
	https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b
	https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784
	https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417
	https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48939",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:32:24.541192Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
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          "programFiles": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add schedule points in batch ops\n\nsyzbot reported various soft lockups caused by bpf batch operations.\n\n INFO: task kworker/1:1:27 blocked for more than 140 seconds.\n INFO: task hung in rcu_barrier\n\nNothing prevents batch ops to process huge amount of data,\nwe need to add schedule points in them.\n\nNote that maybe_wait_bpf_programs(map) calls from\ngeneric_map_delete_batch() can be factorized by moving\nthe call after the loop.\n\nThis will be done later in -next tree once we get this fix merged,\nunless there is strong opinion doing this optimization sooner."
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    "datePublished": "2024-08-22T03:31:34.581Z",
    "dateReserved": "2024-08-22T01:27:53.623Z",
    "dateUpdated": "2024-11-04T12:19:32.959Z",
    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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