github - ghsa-49q2-34qp-qc35

ghsa-49q2-34qp-qc35

Vulnerability from github

Published

2024-07-16 12:30

Modified

2024-08-07 21:31

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

In the Linux kernel, the following vulnerability has been resolved:

iommu: Fix potential use-after-free during probe

Kasan has reported the following use after free on dev->iommu. when a device probe fails and it is in process of freeing dev->iommu in dev_iommu_free function, a deferred_probe_work_func runs in parallel and tries to access dev->iommu->fwspec in of_iommu_configure path thus causing use after free.

BUG: KASAN: use-after-free in of_iommu_configure+0xb4/0x4a4 Read of size 8 at addr ffffff87a2f1acb8 by task kworker/u16:2/153

Workqueue: events_unbound deferred_probe_work_func Call trace: dump_backtrace+0x0/0x33c show_stack+0x18/0x24 dump_stack_lvl+0x16c/0x1e0 print_address_description+0x84/0x39c __kasan_report+0x184/0x308 kasan_report+0x50/0x78 __asan_load8+0xc0/0xc4 of_iommu_configure+0xb4/0x4a4 of_dma_configure_id+0x2fc/0x4d4 platform_dma_configure+0x40/0x5c really_probe+0x1b4/0xb74 driver_probe_device+0x11c/0x228 __device_attach_driver+0x14c/0x304 bus_for_each_drv+0x124/0x1b0 __device_attach+0x25c/0x334 device_initial_probe+0x24/0x34 bus_probe_device+0x78/0x134 deferred_probe_work_func+0x130/0x1a8 process_one_work+0x4c8/0x970 worker_thread+0x5c8/0xaec kthread+0x1f8/0x220 ret_from_fork+0x10/0x18

Allocated by task 1: _kasankmalloc+0xd4/0x114 kasan_kmalloc+0x10/0x1c kmem_cache_alloc_trace+0xe4/0x3d4 __iommu_probe_device+0x90/0x394 probe_iommu_group+0x70/0x9c bus_for_each_dev+0x11c/0x19c bus_iommu_probe+0xb8/0x7d4 bus_set_iommu+0xcc/0x13c arm_smmu_bus_init+0x44/0x130 [arm_smmu] arm_smmu_device_probe+0xb88/0xc54 [arm_smmu] platform_drv_probe+0xe4/0x13c really_probe+0x2c8/0xb74 driver_probe_device+0x11c/0x228 device_driver_attach+0xf0/0x16c __driver_attach+0x80/0x320 bus_for_each_dev+0x11c/0x19c driver_attach+0x38/0x48 bus_add_driver+0x1dc/0x3a4 driver_register+0x18c/0x244 __platform_driver_register+0x88/0x9c init_module+0x64/0xff4 [arm_smmu] do_one_initcall+0x17c/0x2f0 do_init_module+0xe8/0x378 load_module+0x3f80/0x4a40 __se_sys_finit_module+0x1a0/0x1e4 __arm64_sys_finit_module+0x44/0x58 el0_svc_common+0x100/0x264 do_el0_svc+0x38/0xa4 el0_svc+0x20/0x30 el0_sync_handler+0x68/0xac el0_sync+0x160/0x180

Freed by task 1: kasan_set_track+0x4c/0x84 kasan_set_free_info+0x28/0x4c _kasanslab_free+0x120/0x15c kasan_slab_free+0x18/0x28 slab_free_freelist_hook+0x204/0x2fc kfree+0xfc/0x3a4 __iommu_probe_device+0x284/0x394 probe_iommu_group+0x70/0x9c bus_for_each_dev+0x11c/0x19c bus_iommu_probe+0xb8/0x7d4 bus_set_iommu+0xcc/0x13c arm_smmu_bus_init+0x44/0x130 [arm_smmu] arm_smmu_device_probe+0xb88/0xc54 [arm_smmu] platform_drv_probe+0xe4/0x13c really_probe+0x2c8/0xb74 driver_probe_device+0x11c/0x228 device_driver_attach+0xf0/0x16c __driver_attach+0x80/0x320 bus_for_each_dev+0x11c/0x19c driver_attach+0x38/0x48 bus_add_driver+0x1dc/0x3a4 driver_register+0x18c/0x244 __platform_driver_register+0x88/0x9c init_module+0x64/0xff4 [arm_smmu] do_one_initcall+0x17c/0x2f0 do_init_module+0xe8/0x378 load_module+0x3f80/0x4a40 __se_sys_finit_module+0x1a0/0x1e4 __arm64_sys_finit_module+0x44/0x58 el0_svc_common+0x100/0x264 do_el0_svc+0x38/0xa4 el0_svc+0x20/0x30 el0_sync_handler+0x68/0xac el0_sync+0x160/0x180

Fix this by setting dev->iommu to NULL first and then freeing dev_iommu structure in dev_iommu_free function.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-16T12:15:04Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix potential use-after-free during probe\n\nKasan has reported the following use after free on dev-\u003eiommu.\nwhen a device probe fails and it is in process of freeing dev-\u003eiommu\nin dev_iommu_free function, a deferred_probe_work_func runs in parallel\nand tries to access dev-\u003eiommu-\u003efwspec in of_iommu_configure path thus\ncausing use after free.\n\nBUG: KASAN: use-after-free in of_iommu_configure+0xb4/0x4a4\nRead of size 8 at addr ffffff87a2f1acb8 by task kworker/u16:2/153\n\nWorkqueue: events_unbound deferred_probe_work_func\nCall trace:\n dump_backtrace+0x0/0x33c\n show_stack+0x18/0x24\n dump_stack_lvl+0x16c/0x1e0\n print_address_description+0x84/0x39c\n __kasan_report+0x184/0x308\n kasan_report+0x50/0x78\n __asan_load8+0xc0/0xc4\n of_iommu_configure+0xb4/0x4a4\n of_dma_configure_id+0x2fc/0x4d4\n platform_dma_configure+0x40/0x5c\n really_probe+0x1b4/0xb74\n driver_probe_device+0x11c/0x228\n __device_attach_driver+0x14c/0x304\n bus_for_each_drv+0x124/0x1b0\n __device_attach+0x25c/0x334\n device_initial_probe+0x24/0x34\n bus_probe_device+0x78/0x134\n deferred_probe_work_func+0x130/0x1a8\n process_one_work+0x4c8/0x970\n worker_thread+0x5c8/0xaec\n kthread+0x1f8/0x220\n ret_from_fork+0x10/0x18\n\nAllocated by task 1:\n ____kasan_kmalloc+0xd4/0x114\n __kasan_kmalloc+0x10/0x1c\n kmem_cache_alloc_trace+0xe4/0x3d4\n __iommu_probe_device+0x90/0x394\n probe_iommu_group+0x70/0x9c\n bus_for_each_dev+0x11c/0x19c\n bus_iommu_probe+0xb8/0x7d4\n bus_set_iommu+0xcc/0x13c\n arm_smmu_bus_init+0x44/0x130 [arm_smmu]\n arm_smmu_device_probe+0xb88/0xc54 [arm_smmu]\n platform_drv_probe+0xe4/0x13c\n really_probe+0x2c8/0xb74\n driver_probe_device+0x11c/0x228\n device_driver_attach+0xf0/0x16c\n __driver_attach+0x80/0x320\n bus_for_each_dev+0x11c/0x19c\n driver_attach+0x38/0x48\n bus_add_driver+0x1dc/0x3a4\n driver_register+0x18c/0x244\n __platform_driver_register+0x88/0x9c\n init_module+0x64/0xff4 [arm_smmu]\n do_one_initcall+0x17c/0x2f0\n do_init_module+0xe8/0x378\n load_module+0x3f80/0x4a40\n __se_sys_finit_module+0x1a0/0x1e4\n __arm64_sys_finit_module+0x44/0x58\n el0_svc_common+0x100/0x264\n do_el0_svc+0x38/0xa4\n el0_svc+0x20/0x30\n el0_sync_handler+0x68/0xac\n el0_sync+0x160/0x180\n\nFreed by task 1:\n kasan_set_track+0x4c/0x84\n kasan_set_free_info+0x28/0x4c\n ____kasan_slab_free+0x120/0x15c\n __kasan_slab_free+0x18/0x28\n slab_free_freelist_hook+0x204/0x2fc\n kfree+0xfc/0x3a4\n __iommu_probe_device+0x284/0x394\n probe_iommu_group+0x70/0x9c\n bus_for_each_dev+0x11c/0x19c\n bus_iommu_probe+0xb8/0x7d4\n bus_set_iommu+0xcc/0x13c\n arm_smmu_bus_init+0x44/0x130 [arm_smmu]\n arm_smmu_device_probe+0xb88/0xc54 [arm_smmu]\n platform_drv_probe+0xe4/0x13c\n really_probe+0x2c8/0xb74\n driver_probe_device+0x11c/0x228\n device_driver_attach+0xf0/0x16c\n __driver_attach+0x80/0x320\n bus_for_each_dev+0x11c/0x19c\n driver_attach+0x38/0x48\n bus_add_driver+0x1dc/0x3a4\n driver_register+0x18c/0x244\n __platform_driver_register+0x88/0x9c\n init_module+0x64/0xff4 [arm_smmu]\n do_one_initcall+0x17c/0x2f0\n do_init_module+0xe8/0x378\n load_module+0x3f80/0x4a40\n __se_sys_finit_module+0x1a0/0x1e4\n __arm64_sys_finit_module+0x44/0x58\n el0_svc_common+0x100/0x264\n do_el0_svc+0x38/0xa4\n el0_svc+0x20/0x30\n el0_sync_handler+0x68/0xac\n el0_sync+0x160/0x180\n\nFix this by setting dev-\u003eiommu to NULL first and\nthen freeing dev_iommu structure in dev_iommu_free\nfunction.",
  "id": "GHSA-49q2-34qp-qc35",
  "modified": "2024-08-07T21:31:43Z",
  "published": "2024-07-16T12:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48796"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65ab30f6a6952fa9ee13009862736cf8d110e6e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b54240ad494300ff0994c4539a531727874381f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb86e511e78e796de6947b8f3acca1b7c76fb2ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f74fc4b5bd533ea3d30ce47cccb8ef8d21fda85a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2022-48796

Vulnerability from cvelistv5

Published

2024-07-16 11:43

Modified

2024-12-19 08:07

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: iommu: Fix potential use-after-free during probe Kasan has reported the following use after free on dev->iommu. when a device probe fails and it is in process of freeing dev->iommu in dev_iommu_free function, a deferred_probe_work_func runs in parallel and tries to access dev->iommu->fwspec in of_iommu_configure path thus causing use after free. BUG: KASAN: use-after-free in of_iommu_configure+0xb4/0x4a4 Read of size 8 at addr ffffff87a2f1acb8 by task kworker/u16:2/153 Workqueue: events_unbound deferred_probe_work_func Call trace: dump_backtrace+0x0/0x33c show_stack+0x18/0x24 dump_stack_lvl+0x16c/0x1e0 print_address_description+0x84/0x39c __kasan_report+0x184/0x308 kasan_report+0x50/0x78 __asan_load8+0xc0/0xc4 of_iommu_configure+0xb4/0x4a4 of_dma_configure_id+0x2fc/0x4d4 platform_dma_configure+0x40/0x5c really_probe+0x1b4/0xb74 driver_probe_device+0x11c/0x228 __device_attach_driver+0x14c/0x304 bus_for_each_drv+0x124/0x1b0 __device_attach+0x25c/0x334 device_initial_probe+0x24/0x34 bus_probe_device+0x78/0x134 deferred_probe_work_func+0x130/0x1a8 process_one_work+0x4c8/0x970 worker_thread+0x5c8/0xaec kthread+0x1f8/0x220 ret_from_fork+0x10/0x18 Allocated by task 1: ____kasan_kmalloc+0xd4/0x114 __kasan_kmalloc+0x10/0x1c kmem_cache_alloc_trace+0xe4/0x3d4 __iommu_probe_device+0x90/0x394 probe_iommu_group+0x70/0x9c bus_for_each_dev+0x11c/0x19c bus_iommu_probe+0xb8/0x7d4 bus_set_iommu+0xcc/0x13c arm_smmu_bus_init+0x44/0x130 [arm_smmu] arm_smmu_device_probe+0xb88/0xc54 [arm_smmu] platform_drv_probe+0xe4/0x13c really_probe+0x2c8/0xb74 driver_probe_device+0x11c/0x228 device_driver_attach+0xf0/0x16c __driver_attach+0x80/0x320 bus_for_each_dev+0x11c/0x19c driver_attach+0x38/0x48 bus_add_driver+0x1dc/0x3a4 driver_register+0x18c/0x244 __platform_driver_register+0x88/0x9c init_module+0x64/0xff4 [arm_smmu] do_one_initcall+0x17c/0x2f0 do_init_module+0xe8/0x378 load_module+0x3f80/0x4a40 __se_sys_finit_module+0x1a0/0x1e4 __arm64_sys_finit_module+0x44/0x58 el0_svc_common+0x100/0x264 do_el0_svc+0x38/0xa4 el0_svc+0x20/0x30 el0_sync_handler+0x68/0xac el0_sync+0x160/0x180 Freed by task 1: kasan_set_track+0x4c/0x84 kasan_set_free_info+0x28/0x4c ____kasan_slab_free+0x120/0x15c __kasan_slab_free+0x18/0x28 slab_free_freelist_hook+0x204/0x2fc kfree+0xfc/0x3a4 __iommu_probe_device+0x284/0x394 probe_iommu_group+0x70/0x9c bus_for_each_dev+0x11c/0x19c bus_iommu_probe+0xb8/0x7d4 bus_set_iommu+0xcc/0x13c arm_smmu_bus_init+0x44/0x130 [arm_smmu] arm_smmu_device_probe+0xb88/0xc54 [arm_smmu] platform_drv_probe+0xe4/0x13c really_probe+0x2c8/0xb74 driver_probe_device+0x11c/0x228 device_driver_attach+0xf0/0x16c __driver_attach+0x80/0x320 bus_for_each_dev+0x11c/0x19c driver_attach+0x38/0x48 bus_add_driver+0x1dc/0x3a4 driver_register+0x18c/0x244 __platform_driver_register+0x88/0x9c init_module+0x64/0xff4 [arm_smmu] do_one_initcall+0x17c/0x2f0 do_init_module+0xe8/0x378 load_module+0x3f80/0x4a40 __se_sys_finit_module+0x1a0/0x1e4 __arm64_sys_finit_module+0x44/0x58 el0_svc_common+0x100/0x264 do_el0_svc+0x38/0xa4 el0_svc+0x20/0x30 el0_sync_handler+0x68/0xac el0_sync+0x160/0x180 Fix this by setting dev->iommu to NULL first and then freeing dev_iommu structure in dev_iommu_free function.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/cb86e511e78e796de6947b8f3acca1b7c76fb2ff
	https://git.kernel.org/stable/c/65ab30f6a6952fa9ee13009862736cf8d110e6e5
	https://git.kernel.org/stable/c/f74fc4b5bd533ea3d30ce47cccb8ef8d21fda85a
	https://git.kernel.org/stable/c/b54240ad494300ff0994c4539a531727874381f4

Impacted products

Vendor

Product

Version

▼

Linux

Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Linux

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:25:01.525Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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            "url": "https://git.kernel.org/stable/c/cb86e511e78e796de6947b8f3acca1b7c76fb2ff"
          },
          {
            "tags": [
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            "url": "https://git.kernel.org/stable/c/65ab30f6a6952fa9ee13009862736cf8d110e6e5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f74fc4b5bd533ea3d30ce47cccb8ef8d21fda85a"
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          {
            "tags": [
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            "url": "https://git.kernel.org/stable/c/b54240ad494300ff0994c4539a531727874381f4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48796",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:59:19.404709Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:14.954Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cb86e511e78e796de6947b8f3acca1b7c76fb2ff",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "65ab30f6a6952fa9ee13009862736cf8d110e6e5",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f74fc4b5bd533ea3d30ce47cccb8ef8d21fda85a",
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              "versionType": "git"
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            {
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Fix potential use-after-free during probe\n\nKasan has reported the following use after free on dev-\u003eiommu.\nwhen a device probe fails and it is in process of freeing dev-\u003eiommu\nin dev_iommu_free function, a deferred_probe_work_func runs in parallel\nand tries to access dev-\u003eiommu-\u003efwspec in of_iommu_configure path thus\ncausing use after free.\n\nBUG: KASAN: use-after-free in of_iommu_configure+0xb4/0x4a4\nRead of size 8 at addr ffffff87a2f1acb8 by task kworker/u16:2/153\n\nWorkqueue: events_unbound deferred_probe_work_func\nCall trace:\n dump_backtrace+0x0/0x33c\n show_stack+0x18/0x24\n dump_stack_lvl+0x16c/0x1e0\n print_address_description+0x84/0x39c\n __kasan_report+0x184/0x308\n kasan_report+0x50/0x78\n __asan_load8+0xc0/0xc4\n of_iommu_configure+0xb4/0x4a4\n of_dma_configure_id+0x2fc/0x4d4\n platform_dma_configure+0x40/0x5c\n really_probe+0x1b4/0xb74\n driver_probe_device+0x11c/0x228\n __device_attach_driver+0x14c/0x304\n bus_for_each_drv+0x124/0x1b0\n __device_attach+0x25c/0x334\n device_initial_probe+0x24/0x34\n bus_probe_device+0x78/0x134\n deferred_probe_work_func+0x130/0x1a8\n process_one_work+0x4c8/0x970\n worker_thread+0x5c8/0xaec\n kthread+0x1f8/0x220\n ret_from_fork+0x10/0x18\n\nAllocated by task 1:\n ____kasan_kmalloc+0xd4/0x114\n __kasan_kmalloc+0x10/0x1c\n kmem_cache_alloc_trace+0xe4/0x3d4\n __iommu_probe_device+0x90/0x394\n probe_iommu_group+0x70/0x9c\n bus_for_each_dev+0x11c/0x19c\n bus_iommu_probe+0xb8/0x7d4\n bus_set_iommu+0xcc/0x13c\n arm_smmu_bus_init+0x44/0x130 [arm_smmu]\n arm_smmu_device_probe+0xb88/0xc54 [arm_smmu]\n platform_drv_probe+0xe4/0x13c\n really_probe+0x2c8/0xb74\n driver_probe_device+0x11c/0x228\n device_driver_attach+0xf0/0x16c\n __driver_attach+0x80/0x320\n bus_for_each_dev+0x11c/0x19c\n driver_attach+0x38/0x48\n bus_add_driver+0x1dc/0x3a4\n driver_register+0x18c/0x244\n __platform_driver_register+0x88/0x9c\n init_module+0x64/0xff4 [arm_smmu]\n do_one_initcall+0x17c/0x2f0\n do_init_module+0xe8/0x378\n load_module+0x3f80/0x4a40\n __se_sys_finit_module+0x1a0/0x1e4\n __arm64_sys_finit_module+0x44/0x58\n el0_svc_common+0x100/0x264\n do_el0_svc+0x38/0xa4\n el0_svc+0x20/0x30\n el0_sync_handler+0x68/0xac\n el0_sync+0x160/0x180\n\nFreed by task 1:\n kasan_set_track+0x4c/0x84\n kasan_set_free_info+0x28/0x4c\n ____kasan_slab_free+0x120/0x15c\n __kasan_slab_free+0x18/0x28\n slab_free_freelist_hook+0x204/0x2fc\n kfree+0xfc/0x3a4\n __iommu_probe_device+0x284/0x394\n probe_iommu_group+0x70/0x9c\n bus_for_each_dev+0x11c/0x19c\n bus_iommu_probe+0xb8/0x7d4\n bus_set_iommu+0xcc/0x13c\n arm_smmu_bus_init+0x44/0x130 [arm_smmu]\n arm_smmu_device_probe+0xb88/0xc54 [arm_smmu]\n platform_drv_probe+0xe4/0x13c\n really_probe+0x2c8/0xb74\n driver_probe_device+0x11c/0x228\n device_driver_attach+0xf0/0x16c\n __driver_attach+0x80/0x320\n bus_for_each_dev+0x11c/0x19c\n driver_attach+0x38/0x48\n bus_add_driver+0x1dc/0x3a4\n driver_register+0x18c/0x244\n __platform_driver_register+0x88/0x9c\n init_module+0x64/0xff4 [arm_smmu]\n do_one_initcall+0x17c/0x2f0\n do_init_module+0xe8/0x378\n load_module+0x3f80/0x4a40\n __se_sys_finit_module+0x1a0/0x1e4\n __arm64_sys_finit_module+0x44/0x58\n el0_svc_common+0x100/0x264\n do_el0_svc+0x38/0xa4\n el0_svc+0x20/0x30\n el0_sync_handler+0x68/0xac\n el0_sync+0x160/0x180\n\nFix this by setting dev-\u003eiommu to NULL first and\nthen freeing dev_iommu structure in dev_iommu_free\nfunction."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T08:07:53.866Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cb86e511e78e796de6947b8f3acca1b7c76fb2ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/65ab30f6a6952fa9ee13009862736cf8d110e6e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/f74fc4b5bd533ea3d30ce47cccb8ef8d21fda85a"
        },
        {
          "url": "https://git.kernel.org/stable/c/b54240ad494300ff0994c4539a531727874381f4"
        }
      ],
      "title": "iommu: Fix potential use-after-free during probe",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48796",
    "datePublished": "2024-07-16T11:43:50.796Z",
    "dateReserved": "2024-07-16T11:38:08.895Z",
    "dateUpdated": "2024-12-19T08:07:53.866Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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