{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau/dmem: handle kcalloc() allocation failure\n\nThe kcalloc() in nouveau_dmem_evict_chunk() will return null if\nthe physical memory has run out. As a result, if we dereference\nsrc_pfns, dst_pfns or dma_addrs, the null pointer dereference bugs\nwill happen.\n\nMoreover, the GPU is going away. If the kcalloc() fails, we could not\nevict all pages mapping a chunk. So this patch adds a __GFP_NOFAIL\nflag in kcalloc().\n\nFinally, as there is no need to have physically contiguous memory,\nthis patch switches kcalloc() to kvcalloc() in order to avoid\nfailing allocations."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/nouveau/nouveau_dmem.c"
               ],
               "versions": [
                  {
                     "version": "249881232e14",
                     "lessThan": "9acfd8b083a0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "249881232e14",
                     "lessThan": "2a84744a037b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "249881232e14",
                     "lessThan": "5e81773757a9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "249881232e14",
                     "lessThan": "3e82f7383e0b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "249881232e14",
                     "lessThan": "16e87fe23d4a",
                     "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/gpu/drm/nouveau/nouveau_dmem.c"
               ],
               "versions": [
                  {
                     "version": "6.1",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.1",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.84",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.24",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.12",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.3",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2"
            },
            {
               "url": "https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d"
            },
            {
               "url": "https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2"
            },
            {
               "url": "https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee"
            },
            {
               "url": "https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b"
            }
         ],
         "title": "nouveau/dmem: handle kcalloc() allocation failure",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-26943",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}