CVE-2025-71270

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Enable exception fixup for specific ADE subcode This patch allows the LoongArch BPF JIT to handle recoverable memory access errors generated by BPF_PROBE_MEM* instructions. When a BPF program performs memory access operations, the instructions it executes may trigger ADEM exceptions. The kernel’s built-in BPF exception table mechanism (EX_TYPE_BPF) will generate corresponding exception fixup entries in the JIT compilation phase; however, the architecture-specific trap handling function needs to proactively call the common fixup routine to achieve exception recovery. do_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs, ensure safe execution. Relevant test cases: illegal address access tests in module_attach and subprogs_extable of selftests/bpf.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/73ede654d9daa2ee41bdd17bc62946fc5a0258cb	Patch
https://git.kernel.org/stable/c/9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0	Patch
https://git.kernel.org/stable/c/c2ed4f71e9288f21d5c53ff790270758e60fa5f9	Patch
https://git.kernel.org/stable/c/c49a28068363f3dca439aa5fe4d3b1f8159809fe	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::

History

No history.

Information

Published : 2026-03-18 18:16

Updated : 2026-06-17 10:03

NVD link : CVE-2025-71270

Mitre link : CVE-2025-71270

CVE.ORG link : CVE-2025-71270

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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The kernel\u2019s built-in BPF\nexception table mechanism (EX_TYPE_BPF) will generate corresponding\nexception fixup entries in the JIT compilation phase; however, the\narchitecture-specific trap handling function needs to proactively call\nthe common fixup routine to achieve exception recovery.\n\ndo_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs,\nensure safe execution.\n\nRelevant test cases: illegal address access tests in module_attach and\nsubprogs_extable of selftests/bpf."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nLoongArch: Habilitar la correcci\u00f3n de excepciones para un subc\u00f3digo ADE espec\u00edfico\n\nEste parche permite al JIT BPF de LoongArch manejar errores de acceso a memoria recuperables generados por instrucciones BPF_PROBE_MEM*.\n\nCuando un programa BPF realiza operaciones de acceso a memoria, las instrucciones que ejecuta pueden desencadenar excepciones ADEM. El mecanismo de tabla de excepciones BPF integrado del kernel (EX_TYPE_BPF) generar\u00e1 entradas de correcci\u00f3n de excepciones correspondientes en la fase de compilaci\u00f3n JIT; sin embargo, la funci\u00f3n de manejo de trampas espec\u00edfica de la arquitectura necesita llamar proactivamente a la rutina de correcci\u00f3n com\u00fan para lograr la recuperaci\u00f3n de la excepci\u00f3n.\n\ndo_ade(): corrige las excepciones de acceso a memoria EX_TYPE_BPF para programas BPF, asegura la ejecuci\u00f3n segura.\n\nCasos de prueba relevantes: pruebas de acceso a direcciones ilegales en module_attach y subprogs_extable de selftests/bpf."}], "lastModified": "2026-06-17T10:03:59.140", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "76183B9F-CABE-4E21-A3E3-F0EBF99DC3C7", "versionEndExcluding": "6.6.124", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3791390-0628-4808-99EF-1ED8ABF60933", "versionEndExcluding": "6.12.70", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7156C23F-009E-4D05-838C-A2DA417B5B8D", "versionEndExcluding": "6.18.10", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}