{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: core: Fix NULL module pointer assignment at card init\n\nThe commit 81033c6b584b (\"ALSA: core: Warn on empty module\")\nintroduced a WARN_ON() for a NULL module pointer passed at snd_card\nobject creation, and it also wraps the code around it with '#ifdef\nMODULE'.  This works in most cases, but the devils are always in\ndetails.  \"MODULE\" is defined when the target code (i.e. the sound\ncore) is built as a module; but this doesn't mean that the caller is\nalso built-in or not.  Namely, when only the sound core is built-in\n(CONFIG_SND=y) while the driver is a module (CONFIG_SND_USB_AUDIO=m),\nthe passed module pointer is ignored even if it's non-NULL, and\ncard->module remains as NULL.  This would result in the missing module\nreference up/down at the device open/close, leading to a race with the\ncode execution after the module removal.\n\nFor addressing the bug, move the assignment of card->module again out\nof ifdef.  The WARN_ON() is still wrapped with ifdef because the\nmodule can be really NULL when all sound drivers are built-in.\n\nNote that we keep 'ifdef MODULE' for WARN_ON(), otherwise it would\nlead to a false-positive NULL module check.  Admittedly it won't catch\nperfectly, i.e. no check is performed when CONFIG_SND=y.  But, it's no\nreal problem as it's only for debugging, and the condition is pretty\nrare."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "sound/core/init.c"
               ],
               "versions": [
                  {
                     "version": "81033c6b584b",
                     "lessThan": "d7ff29a429b5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "81033c6b584b",
                     "lessThan": "e7e0ca200772",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "81033c6b584b",
                     "lessThan": "e00747672573",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "81033c6b584b",
                     "lessThan": "e644036a3e2b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "81033c6b584b",
                     "lessThan": "c935e72139e6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "81033c6b584b",
                     "lessThan": "6b8374ee2cab",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "81033c6b584b",
                     "lessThan": "39381fe7394e",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "sound/core/init.c"
               ],
               "versions": [
                  {
                     "version": "5.9",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.9",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.219",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.161",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.93",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.33",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.12",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9.3",
                     "lessThanOrEqual": "6.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/d7ff29a429b56f04783152ad7bbd7233b740e434"
            },
            {
               "url": "https://git.kernel.org/stable/c/e7e0ca200772bdb2fdc6d43d32d341e87a36f811"
            },
            {
               "url": "https://git.kernel.org/stable/c/e007476725730c1a68387b54b7629486d8a8301e"
            },
            {
               "url": "https://git.kernel.org/stable/c/e644036a3e2b2c9b3eee3c61b5d31c2ca8b5ba92"
            },
            {
               "url": "https://git.kernel.org/stable/c/c935e72139e6d523defd60fe875c01eb1f9ea5c5"
            },
            {
               "url": "https://git.kernel.org/stable/c/6b8374ee2cabcf034faa34e69a855dc496a9ec12"
            },
            {
               "url": "https://git.kernel.org/stable/c/39381fe7394e5eafac76e7e9367e7351138a29c1"
            }
         ],
         "title": "ALSA: core: Fix NULL module pointer assignment at card init",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-38605",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}