{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-37929", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.970Z", "datePublished": "2025-05-20T15:21:55.253Z", "dateUpdated": "2026-05-11T21:17:50.260Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:17:50.260Z"}, "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 'k' 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't 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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kernel/proton-pack.c"], "versions": [{"version": "4a2f3d8260a996bc43dcc1ce49ac594db54f4b3e", "lessThan": "e68da90ac00d8b681561aeb8f5d6c47af3a04861", "status": "affected", "versionType": "git"}, {"version": "46e22de65eb45a67a68ddfe9301f79b0c3821ca8", "lessThan": "6266b3509b2c6ebf2f9daf2239ff8eb60c5f5bd3", "status": "affected", "versionType": "git"}, {"version": "a53b3599d9bf9375f9033f2aa1fa92714fb1d0f0", "lessThan": "446289b8b36b2ee98dabf6388acbddcc33ed41be", "status": "affected", "versionType": "git"}, {"version": "4117975672c4743cffaf32b6fd018cfacd1b420e", "lessThan": "3821cae9bd5a99a42d3d0be1b58e41f072cd4c4c", "status": "affected", "versionType": "git"}, {"version": "9ca4fe357464bbdad0db67985275f2694df8dab5", "lessThan": "090c8714efe1c3c470301cc2f794c1ee2a57746c", "status": "affected", "versionType": "git"}, {"version": "e060dbb7393ed7bdfba6b5ea7566f9ef87381cfb", "lessThan": "333579202f09e260e8116321df4c55f80a19b160", "status": "affected", "versionType": "git"}, {"version": "a5951389e58d2e816eed3dbec5877de9327fd881", "lessThan": "fee4d171451c1ad9e8aaf65fc0ab7d143a33bd72", "status": "affected", "versionType": "git"}, {"version": "ed681e90fb244aa883b918c4d8be2614e816c6df", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kernel/proton-pack.c"], "versions": [{"version": "5.15.181", "lessThan": "5.15.182", "status": "affected", "versionType": "semver"}, {"version": "6.1.135", "lessThan": "6.1.138", "status": "affected", "versionType": "semver"}, {"version": "6.6.88", "lessThan": "6.6.90", "status": "affected", "versionType": "semver"}, {"version": "6.12.24", "lessThan": "6.12.28", "status": "affected", "versionType": "semver"}, {"version": "6.14.3", "lessThan": "6.14.6", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.181", "versionEndExcluding": "5.15.182"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.135", "versionEndExcluding": "6.1.138"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.88", "versionEndExcluding": "6.6.90"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.24", "versionEndExcluding": "6.12.28"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14.3", "versionEndExcluding": "6.14.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13.12"}]}]}], "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"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:57:27.644Z"}}]}}

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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 'k' 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."}], "id": "CVE-2025-37929", "lastModified": "2025-11-10T20:24:46.587", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-05-20T16:15:29.483", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/090c8714efe1c3c470301cc2f794c1ee2a57746c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/333579202f09e260e8116321df4c55f80a19b160"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3821cae9bd5a99a42d3d0be1b58e41f072cd4c4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/446289b8b36b2ee98dabf6388acbddcc33ed41be"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6266b3509b2c6ebf2f9daf2239ff8eb60c5f5bd3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e68da90ac00d8b681561aeb8f5d6c47af3a04861"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fee4d171451c1ad9e8aaf65fc0ab7d143a33bd72"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays", "id": "2367525", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367525"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\narm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays\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 'k' values for the workaround to be effective.\nUnfortunately, the new arrays omitted the sentinel entry and so\nis_midr_in_range_list() will walk off the end when it doesn't 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| 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\nAdd the missing sentinel entries."], "name": "CVE-2025-37929", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37929\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37929\nhttps://lore.kernel.org/linux-cve-announce/2025052005-CVE-2025-37929-2511@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-27T09:26:50.988952+00:00", "updated": "2025-06-27T09:26:50.989027+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}