CVE-2025-37929

{"id": "CVE-2025-37929", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-05-20T16:15:29.483", "references": [{"url": "https://git.kernel.org/stable/c/090c8714efe1c3c470301cc2f794c1ee2a57746c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/333579202f09e260e8116321df4c55f80a19b160", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3821cae9bd5a99a42d3d0be1b58e41f072cd4c4c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/446289b8b36b2ee98dabf6388acbddcc33ed41be", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6266b3509b2c6ebf2f9daf2239ff8eb60c5f5bd3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e68da90ac00d8b681561aeb8f5d6c47af3a04861", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fee4d171451c1ad9e8aaf65fc0ab7d143a33bd72", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "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."}, {"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."}], "lastModified": "2025-11-10T20:24:46.587", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E787BD46-482C-4E09-821E-8028365B76A6", "versionEndExcluding": "6.1.138", "versionStartIncluding": "6.1.135"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2FFB790F-1BC6-4932-B4D4-581AC5AF0DDB", "versionEndExcluding": "6.6.90", "versionStartIncluding": "6.6.88"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9EC7439E-D071-428D-AD6A-332044906923", "versionEndExcluding": "6.12.28", "versionStartIncluding": "6.12.24"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1F1E5FF-68CB-46CE-BC4F-8E19FA72A921", "versionEndExcluding": "6.14", "versionStartIncluding": "6.13.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "608839B0-DD0C-4FDA-9311-A47D53598DBC", "versionEndExcluding": "6.14.6", "versionStartIncluding": "6.14.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15.181:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD65585E-43A5-4D25-8124-53D7300CFFAD"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13FC0DDE-E513-465E-9E81-515702D49B74"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C7B5B0E-4EEB-48F5-B4CF-0935A7633845"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}