{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe\n\np2sb_bar() unhides P2SB device to get resources from the device. It\nguards the operation by locking pci_rescan_remove_lock so that parallel\nrescans do not find the P2SB device. However, this lock causes deadlock\nwhen PCI bus rescan is triggered by /sys/bus/pci/rescan. The rescan\nlocks pci_rescan_remove_lock and probes PCI devices. When PCI devices\ncall p2sb_bar() during probe, it locks pci_rescan_remove_lock again.\nHence the deadlock.\n\nTo avoid the deadlock, do not lock pci_rescan_remove_lock in p2sb_bar().\nInstead, do the lock at fs_initcall. Introduce p2sb_cache_resources()\nfor fs_initcall which gets and caches the P2SB resources. At p2sb_bar(),\nrefer the cache and return to the caller.\n\nBefore operating the device at P2SB DEVFN for resource cache, check\nthat its device class is PCI_CLASS_MEMORY_OTHER 0x0580 that PCH\nspecifications define. This avoids unexpected operation to other devices\nat the same DEVFN.\n\nTested-by Klara Modin <klarasmodin@gmail.com>"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "versions": [
                  {
                     "version": "9745fb07474f",
                     "lessThan": "2841631a0365",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9745fb07474f",
                     "lessThan": "847e1eb30e26",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9745fb07474f",
                     "lessThan": "d281ac9a987c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9745fb07474f",
                     "lessThan": "5913320eb0b3",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "versions": [
                  {
                     "version": "6.0",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.0",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.76",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.15",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.3",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/2841631a03652f32b595c563695d0461072e0de4"
            },
            {
               "url": "https://git.kernel.org/stable/c/847e1eb30e269a094da046c08273abe3f3361cf2"
            },
            {
               "url": "https://git.kernel.org/stable/c/d281ac9a987c553d93211b90fd4fe97d8eca32cd"
            },
            {
               "url": "https://git.kernel.org/stable/c/5913320eb0b3ec88158cfcb0fa5e996bf4ef681b"
            }
         ],
         "title": "platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe",
         "x_generator": {
            "engine": "bippy-b4257b672505"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-26650",
      "requesterUserId": "lee@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}