cve-2024-26709
Vulnerability from cvelistv5
Published
2024-04-03 14:55
Modified
2024-12-19 08:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach The function spapr_tce_platform_iommu_attach_dev() is missing to call iommu_group_put() when the domain is already set. This refcount leak shows up with BUG_ON() during DLPAR remove operation as: KernelBug: Kernel bug in state 'None': kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100! Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries <snip> Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries NIP: c0000000000ff4d4 LR: c0000000000ff4cc CTR: 0000000000000000 REGS: c0000013aed5f840 TRAP: 0700 Tainted: G I (6.8.0-rc3-autotest-g99bd3cb0d12e) MSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 44002402 XER: 20040000 CFAR: c000000000a0d170 IRQMASK: 0 ... NIP iommu_reconfig_notifier+0x94/0x200 LR iommu_reconfig_notifier+0x8c/0x200 Call Trace: iommu_reconfig_notifier+0x8c/0x200 (unreliable) 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+0x138/0x330 system_call_vectored_common+0x15c/0x2ec The patch adds the missing iommu_group_put() call.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c
Impacted products
Vendor Product Version
Linux Linux Version: 6.7
Show details on NVD website

To clipboard 

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                "id": "CVE-2024-26709",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26709",
    "datePublished": "2024-04-03T14:55:11.868Z",
    "dateReserved": "2024-02-19T14:20:24.159Z",
    "dateUpdated": "2024-12-19T08:45:36.752Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26709\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-03T15:15:53.440\",\"lastModified\":\"2024-11-21T09:02:53.617\",\"vulnStatus\":\"Awaiting Analysis\",\"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 \u0027None\u0027: 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  \u003csnip\u003e\\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 \u003cSF,EE,ME,IR,DR,RI,LE\u003e  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 \u0027Ninguno\u0027: 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().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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