{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-36884", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-30T15:25:07.065Z", "datePublished": "2024-05-30T15:28:53.894Z", "dateUpdated": "2026-08-05T11:31:50.077Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:31:50.077Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()\n\nThis was missed because of the function pointer indirection.\n\nnvidia_smmu_context_fault() is also installed as a irq function, and the\n'void *' was changed to a struct arm_smmu_domain. Since the iommu_domain\nis embedded at a non-zero offset this causes nvidia_smmu_context_fault()\nto miscompute the offset. Fixup the types.\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000120\n Mem abort info:\n ESR = 0x0000000096000004\n EC = 0x25: DABT (current EL), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x04: level 0 translation fault\n Data abort info:\n ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n user pgtable: 4k pages, 48-bit VAs, pgdp=0000000107c9f000\n [0000000000000120] pgd=0000000000000000, p4d=0000000000000000\n Internal error: Oops: 0000000096000004 [#1] SMP\n Modules linked in:\n CPU: 1 PID: 47 Comm: kworker/u25:0 Not tainted 6.9.0-0.rc7.58.eln136.aarch64 #1\n Hardware name: Unknown NVIDIA Jetson Orin NX/NVIDIA Jetson Orin NX, BIOS 3.1-32827747 03/19/2023\n Workqueue: events_unbound deferred_probe_work_func\n pstate: 604000c9 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : nvidia_smmu_context_fault+0x1c/0x158\n lr : __free_irq+0x1d4/0x2e8\n sp : ffff80008044b6f0\n x29: ffff80008044b6f0 x28: ffff000080a60b18 x27: ffffd32b5172e970\n x26: 0000000000000000 x25: ffff0000802f5aac x24: ffff0000802f5a30\n x23: ffff0000802f5b60 x22: 0000000000000057 x21: 0000000000000000\n x20: ffff0000802f5a00 x19: ffff000087d4cd80 x18: ffffffffffffffff\n x17: 6234362066666666 x16: 6630303078302d30 x15: ffff00008156d888\n x14: 0000000000000000 x13: ffff0000801db910 x12: ffff00008156d6d0\n x11: 0000000000000003 x10: ffff0000801db918 x9 : ffffd32b50f94d9c\n x8 : 1fffe0001032fda1 x7 : ffff00008197ed00 x6 : 000000000000000f\n x5 : 000000000000010e x4 : 000000000000010e x3 : 0000000000000000\n x2 : ffffd32b51720cd8 x1 : ffff000087e6f700 x0 : 0000000000000057\n Call trace:\n nvidia_smmu_context_fault+0x1c/0x158\n __free_irq+0x1d4/0x2e8\n free_irq+0x3c/0x80\n devm_free_irq+0x64/0xa8\n arm_smmu_domain_free+0xc4/0x158\n iommu_domain_free+0x44/0xa0\n iommu_deinit_device+0xd0/0xf8\n __iommu_group_remove_device+0xcc/0xe0\n iommu_bus_notifier+0x64/0xa8\n notifier_call_chain+0x78/0x148\n blocking_notifier_call_chain+0x4c/0x90\n bus_notify+0x44/0x70\n device_del+0x264/0x3e8\n pci_remove_bus_device+0x84/0x120\n pci_remove_root_bus+0x5c/0xc0\n dw_pcie_host_deinit+0x38/0xe0\n tegra_pcie_config_rp+0xc0/0x1f0\n tegra_pcie_dw_probe+0x34c/0x700\n platform_probe+0x70/0xe8\n really_probe+0xc8/0x3a0\n __driver_probe_device+0x84/0x160\n driver_probe_device+0x44/0x130\n __device_attach_driver+0xc4/0x170\n bus_for_each_drv+0x90/0x100\n __device_attach+0xa8/0x1c8\n device_initial_probe+0x1c/0x30\n bus_probe_device+0xb0/0xc0\n deferred_probe_work_func+0xbc/0x120\n process_one_work+0x194/0x490\n worker_thread+0x284/0x3b0\n kthread+0xf4/0x108\n ret_from_fork+0x10/0x20\n Code: a9b97bfd 910003fd a9025bf5 f85a0035 (b94122a1)" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable handler is reached through an SMMU context-fault interrupt raised by a device performing faulting DMA, which requires local access to drive a device (VFIO fd, assigned device in a guest, or a device node that issues DMA). There is no remote or adjacent-network path to control DMA target addresses.\nAC:L - An attacker controlling a device behind the SMMU can deterministically generate a context fault by programming DMA to an IOVA that is not mapped, and the miscomputed container_of() offset is a fixed, unconditional error that fires every time the handler runs. No race or unpredictable precondition is involved.\nPR:L - Only ordinary local privileges are needed — a VFIO-assigned device handed to an unprivileged process or a guest VM, or a userspace-driven DMA engine on Tegra, is enough to provoke the fault; no root or CAP_SYS_ADMIN check exists on the fault-reporting path.\nUI:N - The attacker triggers the DMA fault directly; no action by any other user or administrator is required.\nS:U - The IOMMU still correctly blocks the offending DMA — the defect is in the fault-reporting handler — so both the vulnerable and impacted components are the host kernel with no crossing of a DMA or virtualization security boundary.\nC:H - The confused pointer is fetched from the adjacent heap object, and the resulting `bases[]` value is used as the base for readl/readq operations whose results (fsr, fsynr, iova, cbfrsynra) are printed to the kernel log, giving a groomable read primitive with disclosure of kernel memory contents.\nI:H - This is a type confusion in which a pointer field is taken from neighbouring heap memory and then used for register accesses including writel_relaxed(), so the kernel operates on and writes through an attacker-influenceable address.\nA:H - The dereference of the miscomputed pointer produces a fatal oops in hard IRQ context — as demonstrated by the reported NULL-pointer dereference at 0x120 on Jetson Orin NX — and can be triggered repeatedly, panicking the machine." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c" ], "versions": [ { "version": "e0976331ad114af8e379e18483c346c6c79ca858", "lessThan": "e83de8f05b998e227b48cdeea54cba4c9d66d3aa", "status": "affected", "versionType": "git" }, { "version": "e0976331ad114af8e379e18483c346c6c79ca858", "lessThan": "65ade5653f5ab5a21635e51d0c65e95f490f5b6f", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c" ], "versions": [ { "version": "6.8", "status": "affected" }, { "version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.10", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "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": "6.8", "versionEndExcluding": "6.8.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/e83de8f05b998e227b48cdeea54cba4c9d66d3aa" }, { "url": "https://git.kernel.org/stable/c/65ade5653f5ab5a21635e51d0c65e95f490f5b6f" } ], "title": "iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-17T17:32:53.413212Z", "id": "CVE-2024-36884", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-17T17:33:10.028Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:43:49.220Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/e83de8f05b998e227b48cdeea54cba4c9d66d3aa", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/65ade5653f5ab5a21635e51d0c65e95f490f5b6f", "tags": [ "x_transferred" ] } ] } ] } }