cve-2025-37929
Vulnerability from cvelistv5
Published
2025-05-20 15:21
Modified
2025-06-27 10:21
Severity ?
Summary
arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/proton-pack.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e68da90ac00d8b681561aeb8f5d6c47af3a04861",
              "status": "affected",
              "version": "4a2f3d8260a996bc43dcc1ce49ac594db54f4b3e",
              "versionType": "git"
            },
            {
              "lessThan": "6266b3509b2c6ebf2f9daf2239ff8eb60c5f5bd3",
              "status": "affected",
              "version": "46e22de65eb45a67a68ddfe9301f79b0c3821ca8",
              "versionType": "git"
            },
            {
              "lessThan": "446289b8b36b2ee98dabf6388acbddcc33ed41be",
              "status": "affected",
              "version": "a53b3599d9bf9375f9033f2aa1fa92714fb1d0f0",
              "versionType": "git"
            },
            {
              "lessThan": "3821cae9bd5a99a42d3d0be1b58e41f072cd4c4c",
              "status": "affected",
              "version": "4117975672c4743cffaf32b6fd018cfacd1b420e",
              "versionType": "git"
            },
            {
              "lessThan": "090c8714efe1c3c470301cc2f794c1ee2a57746c",
              "status": "affected",
              "version": "9ca4fe357464bbdad0db67985275f2694df8dab5",
              "versionType": "git"
            },
            {
              "lessThan": "333579202f09e260e8116321df4c55f80a19b160",
              "status": "affected",
              "version": "e060dbb7393ed7bdfba6b5ea7566f9ef87381cfb",
              "versionType": "git"
            },
            {
              "lessThan": "fee4d171451c1ad9e8aaf65fc0ab7d143a33bd72",
              "status": "affected",
              "version": "a5951389e58d2e816eed3dbec5877de9327fd881",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ed681e90fb244aa883b918c4d8be2614e816c6df",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kernel/proton-pack.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.15.182",
              "status": "affected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.138",
              "status": "affected",
              "version": "6.1.135",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.90",
              "status": "affected",
              "version": "6.6.88",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.28",
              "status": "affected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThan": "6.14.6",
              "status": "affected",
              "version": "6.14.3",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.182",
                  "versionStartIncluding": "5.15.181",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.138",
                  "versionStartIncluding": "6.1.135",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.90",
                  "versionStartIncluding": "6.6.88",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.28",
                  "versionStartIncluding": "6.12.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.6",
                  "versionStartIncluding": "6.14.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.13.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays\n\nCommit a5951389e58d (\"arm64: errata: Add newer ARM cores to the\nspectre_bhb_loop_affected() lists\") added some additional CPUs to the\nSpectre-BHB workaround, including some new arrays for designs that\nrequire new \u0027k\u0027 values for the workaround to be effective.\n\nUnfortunately, the new arrays omitted the sentinel entry and so\nis_midr_in_range_list() will walk off the end when it doesn\u0027t find a\nmatch. With UBSAN enabled, this leads to a crash during boot when\nis_midr_in_range_list() is inlined (which was more common prior to\nc8c2647e69be (\"arm64: Make \u00a0_midr_in_range_list() an exported\nfunction\")):\n\n |  Internal error: aarch64 BRK: 00000000f2000001 [#1] PREEMPT SMP\n |  pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n |  pc : spectre_bhb_loop_affected+0x28/0x30\n |  lr : is_spectre_bhb_affected+0x170/0x190\n | [...]\n |  Call trace:\n |   spectre_bhb_loop_affected+0x28/0x30\n |   update_cpu_capabilities+0xc0/0x184\n |   init_cpu_features+0x188/0x1a4\n |   cpuinfo_store_boot_cpu+0x4c/0x60\n |   smp_prepare_boot_cpu+0x38/0x54\n |   start_kernel+0x8c/0x478\n |   __primary_switched+0xc8/0xd4\n |  Code: 6b09011f 54000061 52801080 d65f03c0 (d4200020)\n |  ---[ end trace 0000000000000000 ]---\n |  Kernel panic - not syncing: aarch64 BRK: Fatal exception\n\nAdd the missing sentinel entries."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-27T10:21:19.345Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e68da90ac00d8b681561aeb8f5d6c47af3a04861"
        },
        {
          "url": "https://git.kernel.org/stable/c/6266b3509b2c6ebf2f9daf2239ff8eb60c5f5bd3"
        },
        {
          "url": "https://git.kernel.org/stable/c/446289b8b36b2ee98dabf6388acbddcc33ed41be"
        },
        {
          "url": "https://git.kernel.org/stable/c/3821cae9bd5a99a42d3d0be1b58e41f072cd4c4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/090c8714efe1c3c470301cc2f794c1ee2a57746c"
        },
        {
          "url": "https://git.kernel.org/stable/c/333579202f09e260e8116321df4c55f80a19b160"
        },
        {
          "url": "https://git.kernel.org/stable/c/fee4d171451c1ad9e8aaf65fc0ab7d143a33bd72"
        }
      ],
      "title": "arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37929",
    "datePublished": "2025-05-20T15:21:55.253Z",
    "dateReserved": "2025-04-16T04:51:23.970Z",
    "dateUpdated": "2025-06-27T10:21:19.345Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37929\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-20T16:15:29.483\",\"lastModified\":\"2025-06-27T11:15:24.827\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\narm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays\\n\\nCommit a5951389e58d (\\\"arm64: errata: Add newer ARM cores to the\\nspectre_bhb_loop_affected() lists\\\") added some additional CPUs to the\\nSpectre-BHB workaround, including some new arrays for designs that\\nrequire new \u0027k\u0027 values for the workaround to be effective.\\n\\nUnfortunately, the new arrays omitted the sentinel entry and so\\nis_midr_in_range_list() will walk off the end when it doesn\u0027t find a\\nmatch. With UBSAN enabled, this leads to a crash during boot when\\nis_midr_in_range_list() is inlined (which was more common prior to\\nc8c2647e69be (\\\"arm64: Make \u00a0_midr_in_range_list() an exported\\nfunction\\\")):\\n\\n |  Internal error: aarch64 BRK: 00000000f2000001 [#1] PREEMPT SMP\\n |  pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\n |  pc : spectre_bhb_loop_affected+0x28/0x30\\n |  lr : is_spectre_bhb_affected+0x170/0x190\\n | [...]\\n |  Call trace:\\n |   spectre_bhb_loop_affected+0x28/0x30\\n |   update_cpu_capabilities+0xc0/0x184\\n |   init_cpu_features+0x188/0x1a4\\n |   cpuinfo_store_boot_cpu+0x4c/0x60\\n |   smp_prepare_boot_cpu+0x38/0x54\\n |   start_kernel+0x8c/0x478\\n |   __primary_switched+0xc8/0xd4\\n |  Code: 6b09011f 54000061 52801080 d65f03c0 (d4200020)\\n |  ---[ end trace 0000000000000000 ]---\\n |  Kernel panic - not syncing: aarch64 BRK: Fatal exception\\n\\nAdd the missing sentinel entries.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: arm64: errata: A\u00f1adir centinelas faltantes a las matrices MIDR de Spectre-BHB. El commit a5951389e58d (\\\"arm64: errata: A\u00f1adir nuevos n\u00facleos ARM a las listas spectre_bhb_loop_affected()\\\") a\u00f1adi\u00f3 CPU adicionales a la soluci\u00f3n alternativa de Spectre-BHB, incluyendo nuevas matrices para dise\u00f1os que requieren nuevos valores \u0027k\u0027 para que la soluci\u00f3n sea efectiva. Desafortunadamente, las nuevas matrices omitieron la entrada de centinela, por lo que is_midr_in_range_list() se desviar\u00e1 al final si no encuentra una coincidencia. Con UBSAN habilitado, esto provoca un fallo durante el arranque cuando is_midr_in_range_list() est\u00e1 en l\u00ednea (lo cual era m\u00e1s com\u00fan antes de c8c2647e69be (\\\"arm64: Convertir _midr_in_range_list() en una funci\u00f3n exportada\\\")): | Error interno: aarch64 BRK: 00000000f2000001 [#1] PREEMPT SMP | pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) | pc : spectre_bhb_loop_affected+0x28/0x30 | lr : is_spectre_bhb_affected+0x170/0x190 | [...] | Rastreo de llamadas: | spectre_bhb_loop_affected+0x28/0x30 | update_cpu_capabilities+0xc0/0x184 | init_cpu_features+0x188/0x1a4 | cpuinfo_store_boot_cpu+0x4c/0x60 | smp_prepare_boot_cpu+0x38/0x54 | start_kernel+0x8c/0x478 | __primary_switched+0xc8/0xd4 | C\u00f3digo: 6b09011f 54000061 52801080 d65f03c0 (d4200020) | ---[ fin del seguimiento 000000000000000 ]--- | P\u00e1nico del kernel - no sincroniza: aarch64 BRK: Excepci\u00f3n fatal Agregue las entradas centinela faltantes.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/090c8714efe1c3c470301cc2f794c1ee2a57746c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/333579202f09e260e8116321df4c55f80a19b160\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3821cae9bd5a99a42d3d0be1b58e41f072cd4c4c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/446289b8b36b2ee98dabf6388acbddcc33ed41be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6266b3509b2c6ebf2f9daf2239ff8eb60c5f5bd3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e68da90ac00d8b681561aeb8f5d6c47af3a04861\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fee4d171451c1ad9e8aaf65fc0ab7d143a33bd72\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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