{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-26709","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-19T14:20:24.159Z","datePublished":"2024-04-03T14:55:11.868Z","dateUpdated":"2025-05-04T08:54:34.702Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:54:34.702Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/powerpc/kernel/iommu.c"],"versions":[{"version":"a8ca9fc9134c1a43e6d4db7ff59496bbd7075def","lessThan":"c90fdea9cac9eb419fc266e75d625cb60c8f7f6c","status":"affected","versionType":"git"},{"version":"a8ca9fc9134c1a43e6d4db7ff59496bbd7075def","lessThan":"0846dd77c8349ec92ca0079c9c71d130f34cb192","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/powerpc/kernel/iommu.c"],"versions":[{"version":"6.7","status":"affected"},{"version":"0","lessThan":"6.7","status":"unaffected","versionType":"semver"},{"version":"6.7.6","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.7.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c"},{"url":"https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192"}],"title":"powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-26709","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-04-03T18:05:58.062446Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:49:05.160Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T00:14:12.569Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192","tags":["x_transferred"]}]}]}}