cve-2021-47503
Vulnerability from cvelistv5
Published
2024-05-24 15:01
Modified
2024-12-19 07:43
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc() Calling scsi_remove_host() before scsi_add_host() results in a crash: BUG: kernel NULL pointer dereference, address: 0000000000000108 RIP: 0010:device_del+0x63/0x440 Call Trace: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host() has not been called yet at that point in time. Function call tree: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c
Impacted products
Vendor Product Version
Linux Linux Version: 05c6c029a44d9f43715577e33e95eba87f44d285
Version: 05c6c029a44d9f43715577e33e95eba87f44d285
Version: 05c6c029a44d9f43715577e33e95eba87f44d285
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   Linux Linux Version: 5.10
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{
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      assignerShortName: "Linux",
      cveId: "CVE-2021-47503",
      datePublished: "2024-05-24T15:01:50.358Z",
      dateReserved: "2024-05-22T06:20:56.205Z",
      dateUpdated: "2024-12-19T07:43:42.946Z",
      state: "PUBLISHED",
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\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"05c6c029a44d\", \"lessThan\": \"1e434d2687e8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"05c6c029a44d\", \"lessThan\": \"f8dccc1bdea7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"05c6c029a44d\", \"lessThan\": \"653926205741\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/scsi/pm8001/pm8001_init.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\": \"5.10.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/scsi/pm8001/pm8001_init.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\"}, {\"url\": \"https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c\"}, {\"url\": \"https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b\"}], \"x_generator\": {\"engine\": \"bippy-c8e10e5f6187\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\\n\\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000108\\n RIP: 0010:device_del+0x63/0x440\\n Call Trace:\\n  device_unregister+0x17/0x60\\n  scsi_remove_host+0xee/0x2a0\\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\\n  local_pci_probe+0x3f/0x90\\n\\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\\nhas not been called yet at that point in time.\\n\\nFunction call tree:\\n\\n  pm8001_pci_probe()\\n  |\\n  `- pm8001_pci_alloc()\\n  |  |\\n  |  `- pm8001_alloc()\\n  |     |\\n  |     `- scsi_remove_host()\\n  |\\n  `- scsi_add_host()\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T11:42:33.337Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2021-47503\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T11:42:33.337Z\", \"dateReserved\": \"2024-05-22T06:20:56.205Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-24T15:01:50.358Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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