CVE-2022-49921 (GCVE-0-2022-49921)
Vulnerability from cvelistv5
Published
2025-05-01 14:11
Modified
2025-10-01 14:58
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: sched: Fix use after free in red_enqueue() We can't use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len before calling child enqueue").
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/170e5317042c302777ed6d59fdb84af9b0219d4ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/52e0429471976785c155bfbf51d80990c6cd46e2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5960b9081baca85cc7dcb14aec1de85999ea9d36Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/795afe0b9bb6c915f0299a8e309936519be01619Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a238cdcf2bdc72207c74375fc8be13ee549ca9dbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e877f8fa49fbccc63cb2df2e9179bddc695b825aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc4b50adb400ee5ec527a04073174e8e73a139faPatch
Impacted products
Vendor Product Version
Linux Linux Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: d7f4f332f082c4d4ba53582f902ed6b44fd6f45e
Version: ab0b3b9dbf559a5633d460e748144697bd2d3aa3
 Create a notification for this product.
   Linux Linux Version: 4.7
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{\"status\": \"unaffected\", \"version\": \"6.0.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/sched/sch_red.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/795afe0b9bb6c915f0299a8e309936519be01619\"}, {\"url\": \"https://git.kernel.org/stable/c/a238cdcf2bdc72207c74375fc8be13ee549ca9db\"}, {\"url\": \"https://git.kernel.org/stable/c/e877f8fa49fbccc63cb2df2e9179bddc695b825a\"}, {\"url\": \"https://git.kernel.org/stable/c/52e0429471976785c155bfbf51d80990c6cd46e2\"}, {\"url\": \"https://git.kernel.org/stable/c/5960b9081baca85cc7dcb14aec1de85999ea9d36\"}, {\"url\": \"https://git.kernel.org/stable/c/fc4b50adb400ee5ec527a04073174e8e73a139fa\"}, {\"url\": \"https://git.kernel.org/stable/c/170e5317042c302777ed6d59fdb84af9b0219d4e\"}, {\"url\": \"https://git.kernel.org/stable/c/8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: sched: Fix use after free in red_enqueue()\\n\\nWe can\u0027t use \\\"skb\\\" again after passing it to qdisc_enqueue().  This is\\nbasically identical to commit 2f09707d0c97 (\\\"sch_sfb: Also store skb\\nlen before calling child enqueue\\\").\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.333\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.299\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.265\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.224\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.154\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.78\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.8\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.4.163\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:45:28.463Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49921\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T14:58:31.797Z\", \"dateReserved\": \"2025-05-01T14:05:17.252Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-05-01T14:11:00.309Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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