{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: Fix null dereference on suspend\n\nA race condition exists where a synchronous (noqueue) transfer can be\nactive during a system suspend. This can cause a null pointer\ndereference exception to occur when the system resumes.\n\nExample order of events leading to the exception:\n1. spi_sync() calls __spi_transfer_message_noqueue() which sets\n   ctlr->cur_msg\n2. Spi transfer begins via spi_transfer_one_message()\n3. System is suspended interrupting the transfer context\n4. System is resumed\n6. spi_controller_resume() calls spi_start_queue() which resets cur_msg\n   to NULL\n7. Spi transfer context resumes and spi_finalize_current_message() is\n   called which dereferences cur_msg (which is now NULL)\n\nWait for synchronous transfers to complete before suspending by\nacquiring the bus mutex and setting/checking a suspend flag."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/spi/spi.c",
                  "include/linux/spi/spi.h"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "4ec4508db975",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "96474ea47dc6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "bef4a48f4ef7",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/spi/spi.c",
                  "include/linux/spi/spi.h"
               ],
               "versions": [
                  {
                     "version": "6.1.66",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.3",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/4ec4508db97502a12daee88c74782e8d35ced068"
            },
            {
               "url": "https://git.kernel.org/stable/c/96474ea47dc67b0704392d59192b233c8197db0e"
            },
            {
               "url": "https://git.kernel.org/stable/c/bef4a48f4ef798c4feddf045d49e53c8a97d5e37"
            }
         ],
         "title": "spi: Fix null dereference on suspend",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52749",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}