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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C6D6A5C8-7308-42A9-8A72-ABF3DEA4BB82", "versionEndExcluding": "6.7.6", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*", "matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*", "matchCriteriaId": "056BD938-0A27-4569-B391-30578B309EE3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*", "matchCriteriaId": "F02056A5-B362-4370-9FF8-6F0BD384D520", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*", "matchCriteriaId": "62075ACE-B2A0-4B16-829D-B3DA5AE5CC41", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/iommu: Fix the missing iommu_group_put() during platform domain attach\n\nThe function spapr_tce_platform_iommu_attach_dev() is missing to call\niommu_group_put() when the domain is already set. This refcount leak\nshows up with BUG_ON() during DLPAR remove operation as:\n\n KernelBug: Kernel bug in state 'None': kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100!\n Oops: Exception in kernel mode, sig: 5 [#1]\n LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries\n <snip>\n Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries\n NIP: c0000000000ff4d4 LR: c0000000000ff4cc CTR: 0000000000000000\n REGS: c0000013aed5f840 TRAP: 0700 Tainted: G I (6.8.0-rc3-autotest-g99bd3cb0d12e)\n MSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 44002402 XER: 20040000\n CFAR: c000000000a0d170 IRQMASK: 0\n ...\n NIP iommu_reconfig_notifier+0x94/0x200\n LR iommu_reconfig_notifier+0x8c/0x200\n Call Trace:\n iommu_reconfig_notifier+0x8c/0x200 (unreliable)\n notifier_call_chain+0xb8/0x19c\n blocking_notifier_call_chain+0x64/0x98\n of_reconfig_notify+0x44/0xdc\n of_detach_node+0x78/0xb0\n ofdt_write.part.0+0x86c/0xbb8\n proc_reg_write+0xf4/0x150\n vfs_write+0xf8/0x488\n ksys_write+0x84/0x140\n system_call_exception+0x138/0x330\n system_call_vectored_common+0x15c/0x2ec\n\nThe patch adds the missing iommu_group_put() call."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/iommu: corrige el iommu_group_put() que falta durante la conexi\u00f3n del dominio de la plataforma. Falta la funci\u00f3n spapr_tce_platform_iommu_attach_dev() para llamar a iommu_group_put() cuando el dominio ya est\u00e1 configurado. Esta fuga de recuento aparece con BUG_ON() durante la operaci\u00f3n de eliminaci\u00f3n de DLPAR como: KernelBug: Error del kernel en estado 'Ninguno': ERROR del kernel en arch/powerpc/platforms/pseries/iommu.c:100. Vaya: Excepci\u00f3n en modo kernel, sign: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries Nombre de hardware: IBM,9080-HEX POWER10 (sin formato) 0x800200 0xf000006 of:IBM,FW1060. 00 (NH1060_016) hv:phyp pSeries NIP: c0000000000ff4d4 LR: c0000000000ff4cc CTR: 0000000000000000 REGS: c0000013aed5f840 TRAP: 0700 Contaminado: GI (6.8.0-rc3-autotest-g9 9bd3cb0d12e) MSR: 8000000000029033 CR: 44002402 XER: 20040000 CFAR: c000000000a0d170 IRQMASK: 0 ... NIP iommu_reconfig_notifier+0x94/0x200 LR iommu_reconfig_notifier+0x8c/0x200 Seguimiento de llamadas: iommu_reconfig_notifier+0x8c/0x2 00 (no confiable) notifier_call_chain+0xb8/0x19c blocking_notifier_call_chain+ 0x64/0x98 of_reconfig_notify+0x44/0xdc of_detach_node+0x78/0xb0 ofdt_write.part.0+0x86c/0xbb8 proc_reg_write+0xf4/0x150 vfs_write+0xf8/0x488 ksys_write+0x84/0x140 system_call_exception+0x1 38/0x330 system_call_vectored_common+0x15c/0x2ec El parche agrega la llamada faltante a iommu_group_put()."}], "id": "CVE-2024-26709", "lastModified": "2025-01-13T20:03:28.797", "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": "2024-04-03T15:15:53.440", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach", "id": "2273164", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273164"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\npowerpc/iommu: Fix the missing iommu_group_put() during platform domain attach\nThe function spapr_tce_platform_iommu_attach_dev() is missing to call\niommu_group_put() when the domain is already set. This refcount leak\nshows up with BUG_ON() during DLPAR remove operation as:\nKernelBug: Kernel bug in state 'None': kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100!\nOops: Exception in kernel mode, sig: 5 [#1]\nLE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries\n<snip>\nHardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries\nNIP: c0000000000ff4d4 LR: c0000000000ff4cc CTR: 0000000000000000\nREGS: c0000013aed5f840 TRAP: 0700 Tainted: G I (6.8.0-rc3-autotest-g99bd3cb0d12e)\nMSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 44002402 XER: 20040000\nCFAR: c000000000a0d170 IRQMASK: 0\n...\nNIP iommu_reconfig_notifier+0x94/0x200\nLR iommu_reconfig_notifier+0x8c/0x200\nCall Trace:\niommu_reconfig_notifier+0x8c/0x200 (unreliable)\nnotifier_call_chain+0xb8/0x19c\nblocking_notifier_call_chain+0x64/0x98\nof_reconfig_notify+0x44/0xdc\nof_detach_node+0x78/0xb0\nofdt_write.part.0+0x86c/0xbb8\nproc_reg_write+0xf4/0x150\nvfs_write+0xf8/0x488\nksys_write+0x84/0x140\nsystem_call_exception+0x138/0x330\nsystem_call_vectored_common+0x15c/0x2ec\nThe patch adds the missing iommu_group_put() call.", "A vulnerability was found in the spapr_tce_platform_iommu_attach_dev() function in the Linux kernel, where a missing call to the iommu_group_put() function can lead to a reference count leak for IOMMU groups during DLPAR operations. This vulnerability could lead to kernel panics and instability."], "name": "CVE-2024-26709", "package_state": [{"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": "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": "2024-04-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26709\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26709\nhttps://lore.kernel.org/linux-cve-announce/2024040341-CVE-2024-26709-19b4@gregkh/T"], "statement": "Red Hat Enterprise Linux 8 and 9 are not affected by this vulnerability.", "threat_severity": "Moderate"}

{}