CVE-2022-48911 netfilter: nf_queue: fix possible use-after-free

2024-08-2201:31:07

Linux

www.cve.org

linux kernel

netfilter

use-after-free

sock_hold()

queue

packet

error.

EPSS

Percentile

5.1%

JSON

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

netfilter: nf_queue: fix possible use-after-free

Eric Dumazet says:
The sock_hold() side seems suspect, because there is no guarantee
that sk_refcnt is not already 0.

On failure, we cannot queue the packet and need to indicate an
error. The packet will be dropped by the caller.

v2: split skb prefetch hunk into separate change

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/netfilter/nf_queue.h",
      "net/netfilter/nf_queue.c",
      "net/netfilter/nfnetlink_queue.c"
    ],
    "versions": [
      {
        "version": "271b72c7fa82",
        "lessThan": "21b27b2baa27",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "271b72c7fa82",
        "lessThan": "ef97921ccdc2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "271b72c7fa82",
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        "status": "affected",
        "versionType": "git"
      },
      {
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        "status": "affected",
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      },
      {
        "version": "271b72c7fa82",
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      },
      {
        "version": "271b72c7fa82",
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      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/netfilter/nf_queue.h",
      "net/netfilter/nf_queue.c",
      "net/netfilter/nfnetlink_queue.c"
    ],
    "versions": [
      {
        "version": "2.6.29",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.29",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.305",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.270",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.233",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.183",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.104",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.27",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16.13",
        "lessThanOrEqual": "5.16.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]