{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntick/broadcast: Move per CPU pointer access into the atomic section\n\nThe recent fix for making the take over of the broadcast timer more\nreliable retrieves a per CPU pointer in preemptible context.\n\nThis went unnoticed as compilers hoist the access into the non-preemptible\nregion where the pointer is actually used. But of course it's valid that\nthe compiler keeps it at the place where the code puts it which rightfully\ntriggers:\n\n  BUG: using smp_processor_id() in preemptible [00000000] code:\n       caller is hotplug_cpu__broadcast_tick_pull+0x1c/0xc0\n\nMove it to the actual usage site which is in a non-preemptible region."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/time/tick-broadcast.c"
               ],
               "versions": [
                  {
                     "version": "dfe19aa91378",
                     "lessThan": "f54abf332a2b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "457a1c87d454",
                     "lessThan": "f91fb47ecacc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ef719022814",
                     "lessThan": "668c6c4a7e9e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d3b165c10473",
                     "lessThan": "541a900d2455",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "408bfb6b0a7f",
                     "lessThan": "7b3ec186ba93",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3a58c590f6bd",
                     "lessThan": "b9d604933d5f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "2cdab4b4bf77",
                     "lessThan": "7dd12f85f150",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f7d43dd206e7",
                     "lessThan": "6881e75237a8",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/time/tick-broadcast.c"
               ],
               "versions": [
                  {
                     "version": "6.1.103",
                     "lessThan": "6.1.105",
                     "status": "affected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.44",
                     "lessThan": "6.6.46",
                     "status": "affected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.3",
                     "lessThan": "6.10.5",
                     "status": "affected",
                     "versionType": "custom"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/f54abf332a2bc0413cfa8bd6a8511f7aa99faea0"
            },
            {
               "url": "https://git.kernel.org/stable/c/f91fb47ecacc178a83a77eeebd25cbaec18c01d6"
            },
            {
               "url": "https://git.kernel.org/stable/c/668c6c4a7e9e9f081c06b70f30104fb7013437ed"
            },
            {
               "url": "https://git.kernel.org/stable/c/541a900d245536d4809cb1aa322c3fcc2cdb58a6"
            },
            {
               "url": "https://git.kernel.org/stable/c/7b3ec186ba93e333e9efe7254e7e31c1828e5d2d"
            },
            {
               "url": "https://git.kernel.org/stable/c/b9d604933d5fd72dd37f24e1dc35f778297d745a"
            },
            {
               "url": "https://git.kernel.org/stable/c/7dd12f85f150010ef7518201c63fa7e395f5c3e9"
            },
            {
               "url": "https://git.kernel.org/stable/c/6881e75237a84093d0986f56223db3724619f26e"
            }
         ],
         "title": "tick/broadcast: Move per CPU pointer access into the atomic section",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-44968",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}