CVE-2025-21713

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/powerpc/platforms/pseries/iommu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "b853ff0b514c1df314246fcf94744005914b48cb", "status": "affected", "version": "f431a8cde7f102fce412546db6e62fdbde1131a7", "versionType": "git"}, {"lessThan": "ac12372a13dab3f7a2762db240bd180de8ef1e5e", "status": "affected", "version": "f431a8cde7f102fce412546db6e62fdbde1131a7", "versionType": "git"}, {"lessThan": "17391cb2613b82f8c405570fea605af3255ff8d2", "status": "affected", "version": "f431a8cde7f102fce412546db6e62fdbde1131a7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/powerpc/platforms/pseries/iommu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.13", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.14", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2C65B261-0C55-4563-835E-FD44483D02B3", "versionEndExcluding": "6.12.13", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D4116B1-1BFD-4F23-BA84-169CC05FC5A3", "versionEndExcluding": "6.13.2", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries/iommu: Don't unset window if it was never set\n\nOn pSeries, when user attempts to use the same vfio container used by\ndifferent iommu group, the spapr_tce_set_window() returns -EPERM\nand the subsequent cleanup leads to the below crash.\n\n Kernel attempted to read user page (308) - exploit attempt?\n BUG: Kernel NULL pointer dereference on read at 0x00000308\n Faulting instruction address: 0xc0000000001ce358\n Oops: Kernel access of bad area, sig: 11 [#1]\n NIP: c0000000001ce358 LR: c0000000001ce05c CTR: c00000000005add0\n <snip>\n NIP [c0000000001ce358] spapr_tce_unset_window+0x3b8/0x510\n LR [c0000000001ce05c] spapr_tce_unset_window+0xbc/0x510\n Call Trace:\n spapr_tce_unset_window+0xbc/0x510 (unreliable)\n tce_iommu_attach_group+0x24c/0x340 [vfio_iommu_spapr_tce]\n vfio_container_attach_group+0xec/0x240 [vfio]\n vfio_group_fops_unl_ioctl+0x548/0xb00 [vfio]\n sys_ioctl+0x754/0x1580\n system_call_exception+0x13c/0x330\n system_call_vectored_common+0x15c/0x2ec\n <snip>\n --- interrupt: 3000\n\nFix this by having null check for the tbl passed to the\nspapr_tce_unset_window()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/pseries/iommu: No anule la configuraci\u00f3n de la ventana si nunca se configur\u00f3 En pSeries, cuando el usuario intenta utilizar el mismo contenedor vfio utilizado por un grupo iommu diferente, spapr_tce_set_window() devuelve -EPERM y la limpieza posterior conduce al siguiente bloqueo. El kernel intent\u00f3 leer la p\u00e1gina del usuario (308) - exploit attempt? BUG: Kernel NULL pointer dereference on read at 0x00000308 Faulting instruction address: 0xc0000000001ce358 Oops: Kernel access of bad area, sig: 11 [#1] NIP: c0000000001ce358 LR: c0000000001ce05c CTR: c00000000005add0 NIP [c0000000001ce358] spapr_tce_unset_window+0x3b8/0x510 LR [c0000000001ce05c] spapr_tce_unset_window+0xbc/0x510 Call Trace: spapr_tce_unset_window+0xbc/0x510 (unreliable) tce_iommu_attach_group+0x24c/0x340 [vfio_iommu_spapr_tce] vfio_container_attach_group+0xec/0x240 [vfio] vfio_group_fops_unl_ioctl+0x548/0xb00 [vfio] sys_ioctl+0x754/0x1580 system_call_exception+0x13c/0x330 system_call_vectored_common+0x15c/0x2ec --- interrupt: 3000 Solucione esto haciendo que la verificaci\u00f3n de valores nulos sea para la tabla pasada a spapr_tce_unset_window()."}], "id": "CVE-2025-21713", "lastModified": "2026-06-17T08:44:05.563", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-21713", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:31:17.169726Z", "version": "2.0.3"}}]}, "published": "2025-02-27T02:15:14.960", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17391cb2613b82f8c405570fea605af3255ff8d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ac12372a13dab3f7a2762db240bd180de8ef1e5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b853ff0b514c1df314246fcf94744005914b48cb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: powerpc/pseries/iommu: Don't unset window if it was never set", "id": "2348568", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348568"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\npowerpc/pseries/iommu: Don't unset window if it was never set\nOn pSeries, when user attempts to use the same vfio container used by\ndifferent iommu group, the spapr_tce_set_window() returns -EPERM\nand the subsequent cleanup leads to the below crash.\nKernel attempted to read user page (308) - exploit attempt?\nBUG: Kernel NULL pointer dereference on read at 0x00000308\nFaulting instruction address: 0xc0000000001ce358\nOops: Kernel access of bad area, sig: 11 [#1]\nNIP: c0000000001ce358 LR: c0000000001ce05c CTR: c00000000005add0\n<snip>\nNIP [c0000000001ce358] spapr_tce_unset_window+0x3b8/0x510\nLR [c0000000001ce05c] spapr_tce_unset_window+0xbc/0x510\nCall Trace:\nspapr_tce_unset_window+0xbc/0x510 (unreliable)\ntce_iommu_attach_group+0x24c/0x340 [vfio_iommu_spapr_tce]\nvfio_container_attach_group+0xec/0x240 [vfio]\nvfio_group_fops_unl_ioctl+0x548/0xb00 [vfio]\nsys_ioctl+0x754/0x1580\nsystem_call_exception+0x13c/0x330\nsystem_call_vectored_common+0x15c/0x2ec\n<snip>\n--- interrupt: 3000\nFix this by having null check for the tbl passed to the\nspapr_tce_unset_window()."], "name": "CVE-2025-21713", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21713\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21713\nhttps://lore.kernel.org/linux-cve-announce/2025022645-CVE-2025-21713-4c72@gregkh/T"], "threat_severity": "Low"}

{}