{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-26738", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.166Z", "datePublished": "2024-04-03T17:00:24.126Z", "dateUpdated": "2025-05-04T08:55:17.908Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:55:17.908Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller\n\nWhen a PCI device is dynamically added, the kernel oopses with a NULL\npointer dereference:\n\n BUG: Kernel NULL pointer dereference on read at 0x00000030\n Faulting instruction address: 0xc0000000006bbe5c\n Oops: Kernel access of bad area, sig: 11 [#1]\n LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\n Modules linked in: rpadlpar_io rpaphp rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs xsk_diag bonding nft_compat nf_tables nfnetlink rfkill binfmt_misc dm_multipath rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_umad ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core pseries_rng drm drm_panel_orientation_quirks xfs libcrc32c mlx5_core mlxfw sd_mod t10_pi sg tls ibmvscsi ibmveth scsi_transport_srp vmx_crypto pseries_wdt psample dm_mirror dm_region_hash dm_log dm_mod fuse\n CPU: 17 PID: 2685 Comm: drmgr Not tainted 6.7.0-203405+ #66\n Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_008) hv:phyp pSeries\n NIP: c0000000006bbe5c LR: c000000000a13e68 CTR: c0000000000579f8\n REGS: c00000009924f240 TRAP: 0300 Not tainted (6.7.0-203405+)\n MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24002220 XER: 20040006\n CFAR: c000000000a13e64 DAR: 0000000000000030 DSISR: 40000000 IRQMASK: 0\n ...\n NIP sysfs_add_link_to_group+0x34/0x94\n LR iommu_device_link+0x5c/0x118\n Call Trace:\n iommu_init_device+0x26c/0x318 (unreliable)\n iommu_device_link+0x5c/0x118\n iommu_init_device+0xa8/0x318\n iommu_probe_device+0xc0/0x134\n iommu_bus_notifier+0x44/0x104\n notifier_call_chain+0xb8/0x19c\n blocking_notifier_call_chain+0x64/0x98\n bus_notify+0x50/0x7c\n device_add+0x640/0x918\n pci_device_add+0x23c/0x298\n of_create_pci_dev+0x400/0x884\n of_scan_pci_dev+0x124/0x1b0\n __of_scan_bus+0x78/0x18c\n pcibios_scan_phb+0x2a4/0x3b0\n init_phb_dynamic+0xb8/0x110\n dlpar_add_slot+0x170/0x3b8 [rpadlpar_io]\n add_slot_store.part.0+0xb4/0x130 [rpadlpar_io]\n kobj_attr_store+0x2c/0x48\n sysfs_kf_write+0x64/0x78\n kernfs_fop_write_iter+0x1b0/0x290\n vfs_write+0x350/0x4a0\n ksys_write+0x84/0x140\n system_call_exception+0x124/0x330\n system_call_vectored_common+0x15c/0x2ec\n\nCommit a940904443e4 (\"powerpc/iommu: Add iommu_ops to report capabilities\nand allow blocking domains\") broke DLPAR add of PCI devices.\n\nThe above added iommu_device structure to pci_controller. During\nsystem boot, PCI devices are discovered and this newly added iommu_device\nstructure is initialized by a call to iommu_device_register().\n\nDuring DLPAR add of a PCI device, a new pci_controller structure is\nallocated but there are no calls made to iommu_device_register()\ninterface.\n\nFix is to register the iommu device during DLPAR add as well."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/powerpc/include/asm/ppc-pci.h", "arch/powerpc/kernel/iommu.c", "arch/powerpc/platforms/pseries/pci_dlpar.c"], "versions": [{"version": "a940904443e432623579245babe63e2486ff327b", "lessThan": "b8315b2e25b4e68e42fcb74630f824b9a5067765", "status": "affected", "versionType": "git"}, {"version": "a940904443e432623579245babe63e2486ff327b", "lessThan": "46e36ebd5e00a148b67ed77c1d31675996f77c25", "status": "affected", "versionType": "git"}, {"version": "a940904443e432623579245babe63e2486ff327b", "lessThan": "a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321", "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/include/asm/ppc-pci.h", "arch/powerpc/kernel/iommu.c", "arch/powerpc/platforms/pseries/pci_dlpar.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.19", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.7", "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": "6.4", "versionEndExcluding": "6.6.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.7.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765"}, {"url": "https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25"}, {"url": "https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321"}], "title": "powerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-26738", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-04-03T18:32:38.410311Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:49:33.182Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.091Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.091Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-26738", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-04-03T18:32:38.410311Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:21.814Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "powerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "a940904443e432623579245babe63e2486ff327b", "lessThan": "b8315b2e25b4e68e42fcb74630f824b9a5067765", "versionType": "git"}, {"status": "affected", "version": "a940904443e432623579245babe63e2486ff327b", "lessThan": "46e36ebd5e00a148b67ed77c1d31675996f77c25", "versionType": "git"}, {"status": "affected", "version": "a940904443e432623579245babe63e2486ff327b", "lessThan": "a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321", "versionType": "git"}], "programFiles": ["arch/powerpc/include/asm/ppc-pci.h", "arch/powerpc/kernel/iommu.c", "arch/powerpc/platforms/pseries/pci_dlpar.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"status": "unaffected", "version": "0", "lessThan": "6.4", "versionType": "semver"}, {"status": "unaffected", "version": "6.6.19", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7.7", "versionType": "semver", "lessThanOrEqual": "6.7.*"}, {"status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/powerpc/include/asm/ppc-pci.h", "arch/powerpc/kernel/iommu.c", "arch/powerpc/platforms/pseries/pci_dlpar.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765"}, {"url": "https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25"}, {"url": "https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller\n\nWhen a PCI device is dynamically added, the kernel oopses with a NULL\npointer dereference:\n\n BUG: Kernel NULL pointer dereference on read at 0x00000030\n Faulting instruction address: 0xc0000000006bbe5c\n Oops: Kernel access of bad area, sig: 11 [#1]\n LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\n Modules linked in: rpadlpar_io rpaphp rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs xsk_diag bonding nft_compat nf_tables nfnetlink rfkill binfmt_misc dm_multipath rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_umad ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core pseries_rng drm drm_panel_orientation_quirks xfs libcrc32c mlx5_core mlxfw sd_mod t10_pi sg tls ibmvscsi ibmveth scsi_transport_srp vmx_crypto pseries_wdt psample dm_mirror dm_region_hash dm_log dm_mod fuse\n CPU: 17 PID: 2685 Comm: drmgr Not tainted 6.7.0-203405+ #66\n Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_008) hv:phyp pSeries\n NIP: c0000000006bbe5c LR: c000000000a13e68 CTR: c0000000000579f8\n REGS: c00000009924f240 TRAP: 0300 Not tainted (6.7.0-203405+)\n MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24002220 XER: 20040006\n CFAR: c000000000a13e64 DAR: 0000000000000030 DSISR: 40000000 IRQMASK: 0\n ...\n NIP sysfs_add_link_to_group+0x34/0x94\n LR iommu_device_link+0x5c/0x118\n Call Trace:\n iommu_init_device+0x26c/0x318 (unreliable)\n iommu_device_link+0x5c/0x118\n iommu_init_device+0xa8/0x318\n iommu_probe_device+0xc0/0x134\n iommu_bus_notifier+0x44/0x104\n notifier_call_chain+0xb8/0x19c\n blocking_notifier_call_chain+0x64/0x98\n bus_notify+0x50/0x7c\n device_add+0x640/0x918\n pci_device_add+0x23c/0x298\n of_create_pci_dev+0x400/0x884\n of_scan_pci_dev+0x124/0x1b0\n __of_scan_bus+0x78/0x18c\n pcibios_scan_phb+0x2a4/0x3b0\n init_phb_dynamic+0xb8/0x110\n dlpar_add_slot+0x170/0x3b8 [rpadlpar_io]\n add_slot_store.part.0+0xb4/0x130 [rpadlpar_io]\n kobj_attr_store+0x2c/0x48\n sysfs_kf_write+0x64/0x78\n kernfs_fop_write_iter+0x1b0/0x290\n vfs_write+0x350/0x4a0\n ksys_write+0x84/0x140\n system_call_exception+0x124/0x330\n system_call_vectored_common+0x15c/0x2ec\n\nCommit a940904443e4 (\"powerpc/iommu: Add iommu_ops to report capabilities\nand allow blocking domains\") broke DLPAR add of PCI devices.\n\nThe above added iommu_device structure to pci_controller. During\nsystem boot, PCI devices are discovered and this newly added iommu_device\nstructure is initialized by a call to iommu_device_register().\n\nDuring DLPAR add of a PCI device, a new pci_controller structure is\nallocated but there are no calls made to iommu_device_register()\ninterface.\n\nFix is to register the iommu device during DLPAR add as well."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.19", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.7.7", "versionStartIncluding": "6.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8", "versionStartIncluding": "6.4"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:55:17.908Z"}}}, "cveMetadata": {"cveId": "CVE-2024-26738", "state": "PUBLISHED", "dateUpdated": "2025-05-04T08:55:17.908Z", "dateReserved": "2024-02-19T14:20:24.166Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-03T17:00:24.126Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "42342D9F-A537-444E-8441-E8C6CAD53884", "versionEndExcluding": "6.6.19", "versionStartIncluding": "6.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "575EE16B-67F2-4B5B-B5F8-1877715C898B", "versionEndExcluding": "6.7.7", "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}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*", "matchCriteriaId": "A780F817-2A77-4130-A9B7-5C25606314E3", "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: DLPAR add doesn't completely initialize pci_controller\n\nWhen a PCI device is dynamically added, the kernel oopses with a NULL\npointer dereference:\n\n BUG: Kernel NULL pointer dereference on read at 0x00000030\n Faulting instruction address: 0xc0000000006bbe5c\n Oops: Kernel access of bad area, sig: 11 [#1]\n LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\n Modules linked in: rpadlpar_io rpaphp rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs xsk_diag bonding nft_compat nf_tables nfnetlink rfkill binfmt_misc dm_multipath rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_umad ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core pseries_rng drm drm_panel_orientation_quirks xfs libcrc32c mlx5_core mlxfw sd_mod t10_pi sg tls ibmvscsi ibmveth scsi_transport_srp vmx_crypto pseries_wdt psample dm_mirror dm_region_hash dm_log dm_mod fuse\n CPU: 17 PID: 2685 Comm: drmgr Not tainted 6.7.0-203405+ #66\n Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_008) hv:phyp pSeries\n NIP: c0000000006bbe5c LR: c000000000a13e68 CTR: c0000000000579f8\n REGS: c00000009924f240 TRAP: 0300 Not tainted (6.7.0-203405+)\n MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24002220 XER: 20040006\n CFAR: c000000000a13e64 DAR: 0000000000000030 DSISR: 40000000 IRQMASK: 0\n ...\n NIP sysfs_add_link_to_group+0x34/0x94\n LR iommu_device_link+0x5c/0x118\n Call Trace:\n iommu_init_device+0x26c/0x318 (unreliable)\n iommu_device_link+0x5c/0x118\n iommu_init_device+0xa8/0x318\n iommu_probe_device+0xc0/0x134\n iommu_bus_notifier+0x44/0x104\n notifier_call_chain+0xb8/0x19c\n blocking_notifier_call_chain+0x64/0x98\n bus_notify+0x50/0x7c\n device_add+0x640/0x918\n pci_device_add+0x23c/0x298\n of_create_pci_dev+0x400/0x884\n of_scan_pci_dev+0x124/0x1b0\n __of_scan_bus+0x78/0x18c\n pcibios_scan_phb+0x2a4/0x3b0\n init_phb_dynamic+0xb8/0x110\n dlpar_add_slot+0x170/0x3b8 [rpadlpar_io]\n add_slot_store.part.0+0xb4/0x130 [rpadlpar_io]\n kobj_attr_store+0x2c/0x48\n sysfs_kf_write+0x64/0x78\n kernfs_fop_write_iter+0x1b0/0x290\n vfs_write+0x350/0x4a0\n ksys_write+0x84/0x140\n system_call_exception+0x124/0x330\n system_call_vectored_common+0x15c/0x2ec\n\nCommit a940904443e4 (\"powerpc/iommu: Add iommu_ops to report capabilities\nand allow blocking domains\") broke DLPAR add of PCI devices.\n\nThe above added iommu_device structure to pci_controller. During\nsystem boot, PCI devices are discovered and this newly added iommu_device\nstructure is initialized by a call to iommu_device_register().\n\nDuring DLPAR add of a PCI device, a new pci_controller structure is\nallocated but there are no calls made to iommu_device_register()\ninterface.\n\nFix is to register the iommu device during DLPAR add as well."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/pseries/iommu: la adici\u00f3n de DLPAR no inicializa completamente pci_controller Cuando se agrega din\u00e1micamente un dispositivo PCI, el kernel falla con una desreferencia del puntero NULL: ERROR: desreferencia del puntero NULL del kernel activado le\u00eddo en 0x00000030 Direcci\u00f3n de instrucci\u00f3n err\u00f3nea: 0xc0000000006bbe5c Vaya: acceso al kernel del \u00e1rea defectuosa, firma: 11 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 M\u00f3dulos NUMA pSeries vinculados en: rpadlpar_io rpaphp rpcsec_gss_krb5 auth_r pcgss nfsv4 dns_resolver nfs lockd gracia fscache netfs xsk_diag vinculaci\u00f3n nft_compat nf_tables nfnetlink rfkill binfmt_misc dm_multipath rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_umad ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_cm iw_cm ib_cm mlx5 _ib ib_uverbs ib_core pseries_rng drm drm_panel_orientation_quirks xfs libcrc32c mlx5_core mlxfw sd_mod t10_pi sg tls ibmvscsi ibmveth scsi_transport_srp vmx_crypto pseries_wdt psample dm_mirror dm_region_hash dm_log dm_mod CPU fusible : 17 PID: 2685 Comm: drmgr No contaminado 6.7.0-203405+ #66 Nombre de hardware: IBM,9080-HEX POWER10 (sin procesar) 0x800200 0xf000006 de:IBM,FW1060.00 (NH1060_008) hv:phyp pSeries NIP: c0000000006b be5c LR : c000000000a13e68 CTR: c0000000000579f8 REGS: c00000009924f240 TRAP: 0300 No contaminado (6.7.0-203405+) MSR: 8000000000009033 CR: 2400 2220 XER: 20040006 CFAR: c000000000a13e64 DAR: 0000000000000030 DSISR: 40000000 IRQMASK: 0 ... NIP sysfs_add_link_to_group+0x34/0x94 LR iommu_device_link+0x5c/0x118 Seguimiento de llamadas: iommu_init_device+0x26c/0x318 (no confiable) iommu_device_ enlace+0x5c/0x118 iommu_init_device+0xa8/0x318 iommu_probe_device+0xc0/0x134 iommu_bus_notifier+ 0x44/0x104 notifier_call_chain+0xb8/0x19c blocking_notifier_call_chain+0x64/0x98 bus_notify+0x50/0x7c device_add+0x640/0x918 pci_device_add+0x23c/0x298 of_create_pci_dev+0x400/0x884 of_s can_pci_dev+0x124/0x1b0 __of_scan_bus+0x78/0x18c pcibios_scan_phb+0x2a4/0x3b0 init_phb_dynamic+ 0xb8/0x110 dlpar_add_slot+0x170/0x3b8 [rpadlpar_io] add_slot_store.part.0+0xb4/0x130 [rpadlpar_io] kobj_attr_store+0x2c/0x48 sysfs_kf_write+0x64/0x78 kernfs_fop_write_iter+0x1b 0/0x290 vfs_write+0x350/0x4a0 ksys_write+0x84/0x140 system_call_exception+ 0x124/0x330 system_call_vectored_common+0x15c/0x2ec el commit a940904443e4 (\"powerpc/iommu: agregue iommu_ops para informar capacidades y permitir dominios de bloqueo\") rompi\u00f3 la adici\u00f3n DLPAR de dispositivos PCI. Lo anterior agreg\u00f3 la estructura iommu_device a pci_controller. Durante el arranque del SYSTEM, se descubren dispositivos PCI y esta estructura iommu_device reci\u00e9n agregada se inicializa mediante una llamada a iommu_device_register(). Durante la adici\u00f3n DLPAR de un dispositivo PCI, se asigna una nueva estructura pci_controller pero no se realizan llamadas a la interfaz iommu_device_register(). La soluci\u00f3n es registrar tambi\u00e9n el dispositivo iommu durante la adici\u00f3n de DLPAR."}], "id": "CVE-2024-26738", "lastModified": "2025-01-07T21:13:43.273", "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": "2024-04-03T17:15:51.303", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/46e36ebd5e00a148b67ed77c1d31675996f77c25"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a5c57fd2e9bd1c8ea8613a8f94fd0be5eccbf321"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8315b2e25b4e68e42fcb74630f824b9a5067765"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: powerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller", "id": "2273272", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273272"}, "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: DLPAR add doesn't completely initialize pci_controller\nWhen a PCI device is dynamically added, the kernel oopses with a NULL\npointer dereference:\nBUG: Kernel NULL pointer dereference on read at 0x00000030\nFaulting instruction address: 0xc0000000006bbe5c\nOops: Kernel access of bad area, sig: 11 [#1]\nLE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\nModules linked in: rpadlpar_io rpaphp rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs xsk_diag bonding nft_compat nf_tables nfnetlink rfkill binfmt_misc dm_multipath rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_umad ib_iser libiscsi scsi_transport_iscsi ib_ipoib rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core pseries_rng drm drm_panel_orientation_quirks xfs libcrc32c mlx5_core mlxfw sd_mod t10_pi sg tls ibmvscsi ibmveth scsi_transport_srp vmx_crypto pseries_wdt psample dm_mirror dm_region_hash dm_log dm_mod fuse\nCPU: 17 PID: 2685 Comm: drmgr Not tainted 6.7.0-203405+ #66\nHardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_008) hv:phyp pSeries\nNIP: c0000000006bbe5c LR: c000000000a13e68 CTR: c0000000000579f8\nREGS: c00000009924f240 TRAP: 0300 Not tainted (6.7.0-203405+)\nMSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24002220 XER: 20040006\nCFAR: c000000000a13e64 DAR: 0000000000000030 DSISR: 40000000 IRQMASK: 0\n...\nNIP sysfs_add_link_to_group+0x34/0x94\nLR iommu_device_link+0x5c/0x118\nCall Trace:\niommu_init_device+0x26c/0x318 (unreliable)\niommu_device_link+0x5c/0x118\niommu_init_device+0xa8/0x318\niommu_probe_device+0xc0/0x134\niommu_bus_notifier+0x44/0x104\nnotifier_call_chain+0xb8/0x19c\nblocking_notifier_call_chain+0x64/0x98\nbus_notify+0x50/0x7c\ndevice_add+0x640/0x918\npci_device_add+0x23c/0x298\nof_create_pci_dev+0x400/0x884\nof_scan_pci_dev+0x124/0x1b0\n__of_scan_bus+0x78/0x18c\npcibios_scan_phb+0x2a4/0x3b0\ninit_phb_dynamic+0xb8/0x110\ndlpar_add_slot+0x170/0x3b8 [rpadlpar_io]\nadd_slot_store.part.0+0xb4/0x130 [rpadlpar_io]\nkobj_attr_store+0x2c/0x48\nsysfs_kf_write+0x64/0x78\nkernfs_fop_write_iter+0x1b0/0x290\nvfs_write+0x350/0x4a0\nksys_write+0x84/0x140\nsystem_call_exception+0x124/0x330\nsystem_call_vectored_common+0x15c/0x2ec\nCommit a940904443e4 (\"powerpc/iommu: Add iommu_ops to report capabilities\nand allow blocking domains\") broke DLPAR add of PCI devices.\nThe above added iommu_device structure to pci_controller. During\nsystem boot, PCI devices are discovered and this newly added iommu_device\nstructure is initialized by a call to iommu_device_register().\nDuring DLPAR add of a PCI device, a new pci_controller structure is\nallocated but there are no calls made to iommu_device_register()\ninterface.\nFix is to register the iommu device during DLPAR add as well.", "A vulnerability was found in the Linux kernel, occurring during the Dynamic Logical Partitioning (DLPAR) add of a PCI device. The iommu_device structure is not properly initialized and this leads to a NULL pointer dereference which can cause kernel crashes."], "name": "CVE-2024-26738", "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-2024-26738\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26738\nhttps://lore.kernel.org/linux-cve-announce/2024040300-CVE-2024-26738-844b@gregkh/T"], "statement": "Red Hat Enterprise Linux 8 and 9 are not affected by this vulnerability.", "threat_severity": "Moderate"}

{}