CVE-2022-48648 (GCVE-0-2022-48648)

Vulnerability from cvelistv5 – Published: 2024-04-28 13:00 – Updated: 2025-05-04 08:20
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: sfc: fix null pointer dereference in efx_hard_start_xmit Trying to get the channel from the tx_queue variable here is wrong because we can only be here if tx_queue is NULL, so we shouldn't dereference it. As the above comment in the code says, this is very unlikely to happen, but it's wrong anyway so let's fix it. I hit this issue because of a different bug that caused tx_queue to be NULL. If that happens, this is the error message that we get here: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [...] RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 12804793b17c0e19115a90d98f2f3df0cb79e233 , < b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7 (git)
Affected: 12804793b17c0e19115a90d98f2f3df0cb79e233 , < 8547c7bfc0617e7184e4da65b9b96681fcfe9998 (git)
Affected: 12804793b17c0e19115a90d98f2f3df0cb79e233 , < b3b952168ee1f220ba729fa100fd9d5aa752eb03 (git)
Affected: 12804793b17c0e19115a90d98f2f3df0cb79e233 , < 0a242eb2913a4aa3d6fbdb86559f27628e9466f3 (git)
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    Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.146 , ≤ 5.10.* (semver)
Unaffected: 5.15.71 , ≤ 5.15.* (semver)
Unaffected: 5.19.12 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T15:17:55.597Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48648\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-17T17:40:59.005173Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-17T17:41:00.344Z\"}}], \"cna\": {\"title\": \"sfc: fix null pointer dereference in efx_hard_start_xmit\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"12804793b17c0e19115a90d98f2f3df0cb79e233\", \"lessThan\": \"b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"12804793b17c0e19115a90d98f2f3df0cb79e233\", \"lessThan\": \"8547c7bfc0617e7184e4da65b9b96681fcfe9998\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"12804793b17c0e19115a90d98f2f3df0cb79e233\", \"lessThan\": \"b3b952168ee1f220ba729fa100fd9d5aa752eb03\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"12804793b17c0e19115a90d98f2f3df0cb79e233\", \"lessThan\": \"0a242eb2913a4aa3d6fbdb86559f27628e9466f3\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/sfc/tx.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.146\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.71\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.19.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/sfc/tx.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7\"}, {\"url\": \"https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998\"}, {\"url\": \"https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03\"}, {\"url\": \"https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsfc: fix null pointer dereference in efx_hard_start_xmit\\n\\nTrying to get the channel from the tx_queue variable here is wrong\\nbecause we can only be here if tx_queue is NULL, so we shouldn\u0027t\\ndereference it. As the above comment in the code says, this is very\\nunlikely to happen, but it\u0027s wrong anyway so let\u0027s fix it.\\n\\nI hit this issue because of a different bug that caused tx_queue to be\\nNULL. If that happens, this is the error message that we get here:\\n  BUG: unable to handle kernel NULL pointer dereference at 0000000000000020\\n  [...]\\n  RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.146\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.71\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.12\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0\", \"versionStartIncluding\": \"5.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:20:31.917Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48648\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:20:31.917Z\", \"dateReserved\": \"2024-02-25T13:44:28.316Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-28T13:00:28.994Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.