{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: core: Run atomic i2c xfer when !preemptible\n\nSince bae1d3a05a8b, i2c transfers are non-atomic if preemption is\ndisabled. However, non-atomic i2c transfers require preemption (e.g. in\nwait_for_completion() while waiting for the DMA).\n\npanic() calls preempt_disable_notrace() before calling\nemergency_restart(). Therefore, if an i2c device is used for the\nrestart, the xfer should be atomic. This avoids warnings like:\n\n[   12.667612] WARNING: CPU: 1 PID: 1 at kernel/rcu/tree_plugin.h:318 rcu_note_context_switch+0x33c/0x6b0\n[   12.676926] Voluntary context switch within RCU read-side critical section!\n...\n[   12.742376]  schedule_timeout from wait_for_completion_timeout+0x90/0x114\n[   12.749179]  wait_for_completion_timeout from tegra_i2c_wait_completion+0x40/0x70\n...\n[   12.994527]  atomic_notifier_call_chain from machine_restart+0x34/0x58\n[   13.001050]  machine_restart from panic+0x2a8/0x32c\n\nUse !preemptible() instead, which is basically the same check as\npre-v5.2."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/i2c/i2c-core.h"
               ],
               "versions": [
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "25eb381a736e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "25284c46b657",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "f6237afabc34",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "185f3617adc8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "8c3fa52a46ff",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "3473cf43b906",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bae1d3a05a8b",
                     "lessThan": "aa49c90894d0",
                     "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/i2c/i2c-core.h"
               ],
               "versions": [
                  {
                     "version": "5.2",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.2",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.262",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.202",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.140",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.64",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.5.13",
                     "lessThanOrEqual": "6.5.*",
                     "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/25eb381a736e7ae39a4245ef5c96484eb1073809"
            },
            {
               "url": "https://git.kernel.org/stable/c/25284c46b657f48c0f3880a2e0706c70d81182c0"
            },
            {
               "url": "https://git.kernel.org/stable/c/f6237afabc349c1c7909db00e15d2816519e0d2b"
            },
            {
               "url": "https://git.kernel.org/stable/c/185f3617adc8fe45e40489b458f03911f0dec46c"
            },
            {
               "url": "https://git.kernel.org/stable/c/8c3fa52a46ff4d208cefb1a462ec94e0043a91e1"
            },
            {
               "url": "https://git.kernel.org/stable/c/3473cf43b9068b9dfef2f545f833f33c6a544b91"
            },
            {
               "url": "https://git.kernel.org/stable/c/aa49c90894d06e18a1ee7c095edbd2f37c232d02"
            }
         ],
         "title": "i2c: core: Run atomic i2c xfer when !preemptible",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52791",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}