gsd - gsd-2024-26893

gsd-2024-26893

Vulnerability from gsd

Modified

2024-02-20 06:02

Details

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix double free in SMC transport cleanup path When the generic SCMI code tears down a channel, it calls the chan_free callback function, defined by each transport. Since multiple protocols might share the same transport_info member, chan_free() might want to clean up the same member multiple times within the given SCMI transport implementation. In this case, it is SMC transport. This will lead to a NULL pointer dereference at the second time: | scmi_protocol scmi_dev.1: Enabled polling mode TX channel - prot_id:16 | arm-scmi firmware:scmi: SCMI Notifications - Core Enabled. | arm-scmi firmware:scmi: unable to communicate with SCMI | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 | Mem abort info: | ESR = 0x0000000096000004 | EC = 0x25: DABT (current EL), IL = 32 bits | SET = 0, FnV = 0 | EA = 0, S1PTW = 0 | FSC = 0x04: level 0 translation fault | Data abort info: | ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 | CM = 0, WnR = 0, TnD = 0, TagAccess = 0 | GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 | user pgtable: 4k pages, 48-bit VAs, pgdp=0000000881ef8000 | [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 | Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP | Modules linked in: | CPU: 4 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-00124-g455ef3d016c9-dirty #793 | Hardware name: FVP Base RevC (DT) | pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) | pc : smc_chan_free+0x3c/0x6c | lr : smc_chan_free+0x3c/0x6c | Call trace: | smc_chan_free+0x3c/0x6c | idr_for_each+0x68/0xf8 | scmi_cleanup_channels.isra.0+0x2c/0x58 | scmi_probe+0x434/0x734 | platform_probe+0x68/0xd8 | really_probe+0x110/0x27c | __driver_probe_device+0x78/0x12c | driver_probe_device+0x3c/0x118 | __driver_attach+0x74/0x128 | bus_for_each_dev+0x78/0xe0 | driver_attach+0x24/0x30 | bus_add_driver+0xe4/0x1e8 | driver_register+0x60/0x128 | __platform_driver_register+0x28/0x34 | scmi_driver_init+0x84/0xc0 | do_one_initcall+0x78/0x33c | kernel_init_freeable+0x2b8/0x51c | kernel_init+0x24/0x130 | ret_from_fork+0x10/0x20 | Code: f0004701 910a0021 aa1403e5 97b91c70 (b9400280) | ---[ end trace 0000000000000000 ]--- Simply check for the struct pointer being NULL before trying to access its members, to avoid this situation. This was found when a transport doesn't really work (for instance no SMC service), the probe routines then tries to clean up, and triggers a crash.

Aliases

CVE-2024-26893

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-26893"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix double free in SMC transport cleanup path\n\nWhen the generic SCMI code tears down a channel, it calls the chan_free\ncallback function, defined by each transport. Since multiple protocols\nmight share the same transport_info member, chan_free() might want to\nclean up the same member multiple times within the given SCMI transport\nimplementation. In this case, it is SMC transport. This will lead to a NULL\npointer dereference at the second time:\n\n    | scmi_protocol scmi_dev.1: Enabled polling mode TX channel - prot_id:16\n    | arm-scmi firmware:scmi: SCMI Notifications - Core Enabled.\n    | arm-scmi firmware:scmi: unable to communicate with SCMI\n    | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\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=0000000881ef8000\n    | [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n    | Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n    | Modules linked in:\n    | CPU: 4 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-00124-g455ef3d016c9-dirty #793\n    | Hardware name: FVP Base RevC (DT)\n    | pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    | pc : smc_chan_free+0x3c/0x6c\n    | lr : smc_chan_free+0x3c/0x6c\n    | Call trace:\n    |  smc_chan_free+0x3c/0x6c\n    |  idr_for_each+0x68/0xf8\n    |  scmi_cleanup_channels.isra.0+0x2c/0x58\n    |  scmi_probe+0x434/0x734\n    |  platform_probe+0x68/0xd8\n    |  really_probe+0x110/0x27c\n    |  __driver_probe_device+0x78/0x12c\n    |  driver_probe_device+0x3c/0x118\n    |  __driver_attach+0x74/0x128\n    |  bus_for_each_dev+0x78/0xe0\n    |  driver_attach+0x24/0x30\n    |  bus_add_driver+0xe4/0x1e8\n    |  driver_register+0x60/0x128\n    |  __platform_driver_register+0x28/0x34\n    |  scmi_driver_init+0x84/0xc0\n    |  do_one_initcall+0x78/0x33c\n    |  kernel_init_freeable+0x2b8/0x51c\n    |  kernel_init+0x24/0x130\n    |  ret_from_fork+0x10/0x20\n    | Code: f0004701 910a0021 aa1403e5 97b91c70 (b9400280)\n    | ---[ end trace 0000000000000000 ]---\n\nSimply check for the struct pointer being NULL before trying to access\nits members, to avoid this situation.\n\nThis was found when a transport doesn\u0027t really work (for instance no SMC\nservice), the probe routines then tries to clean up, and triggers a crash.",
      "id": "GSD-2024-26893",
      "modified": "2024-02-20T06:02:29.067895Z",
      "schema_version": "1.4.0"
    }
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          }
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          }
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix double free in SMC transport cleanup path\n\nWhen the generic SCMI code tears down a channel, it calls the chan_free\ncallback function, defined by each transport. Since multiple protocols\nmight share the same transport_info member, chan_free() might want to\nclean up the same member multiple times within the given SCMI transport\nimplementation. In this case, it is SMC transport. This will lead to a NULL\npointer dereference at the second time:\n\n    | scmi_protocol scmi_dev.1: Enabled polling mode TX channel - prot_id:16\n    | arm-scmi firmware:scmi: SCMI Notifications - Core Enabled.\n    | arm-scmi firmware:scmi: unable to communicate with SCMI\n    | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\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=0000000881ef8000\n    | [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n    | Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n    | Modules linked in:\n    | CPU: 4 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-00124-g455ef3d016c9-dirty #793\n    | Hardware name: FVP Base RevC (DT)\n    | pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    | pc : smc_chan_free+0x3c/0x6c\n    | lr : smc_chan_free+0x3c/0x6c\n    | Call trace:\n    |  smc_chan_free+0x3c/0x6c\n    |  idr_for_each+0x68/0xf8\n    |  scmi_cleanup_channels.isra.0+0x2c/0x58\n    |  scmi_probe+0x434/0x734\n    |  platform_probe+0x68/0xd8\n    |  really_probe+0x110/0x27c\n    |  __driver_probe_device+0x78/0x12c\n    |  driver_probe_device+0x3c/0x118\n    |  __driver_attach+0x74/0x128\n    |  bus_for_each_dev+0x78/0xe0\n    |  driver_attach+0x24/0x30\n    |  bus_add_driver+0xe4/0x1e8\n    |  driver_register+0x60/0x128\n    |  __platform_driver_register+0x28/0x34\n    |  scmi_driver_init+0x84/0xc0\n    |  do_one_initcall+0x78/0x33c\n    |  kernel_init_freeable+0x2b8/0x51c\n    |  kernel_init+0x24/0x130\n    |  ret_from_fork+0x10/0x20\n    | Code: f0004701 910a0021 aa1403e5 97b91c70 (b9400280)\n    | ---[ end trace 0000000000000000 ]---\n\nSimply check for the struct pointer being NULL before trying to access\nits members, to avoid this situation.\n\nThis was found when a transport doesn\u0027t really work (for instance no SMC\nservice), the probe routines then tries to clean up, and triggers a crash."
          }
        ],
        "id": "CVE-2024-26893",
        "lastModified": "2024-04-17T12:48:07.510",
        "metrics": {},
        "published": "2024-04-17T11:15:10.577",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/0d276d9f335f41d6524258d58c0c0241ef9a83a4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/857f56db8c3a71f9871922b6984ff74ad588cb2c"
          },
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ead445dd3d681020af333649a27306160eee761d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f1d71576d2c9ec8fdb822173fa7f3de79475e9bd"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}

cve-2024-26893

Vulnerability from cvelistv5

Published

2024-04-17 10:27

Modified

2024-11-05 09:17

Severity ?

Summary

firmware: arm_scmi: Fix double free in SMC transport cleanup path

References

▼	URL	Tags
	https://git.kernel.org/stable/c/0d276d9f335f41d6524258d58c0c0241ef9a83a4
	https://git.kernel.org/stable/c/857f56db8c3a71f9871922b6984ff74ad588cb2c
	https://git.kernel.org/stable/c/8ffaa17ccb1eb1b65cf85db63225a3581c303773
	https://git.kernel.org/stable/c/ead445dd3d681020af333649a27306160eee761d
	https://git.kernel.org/stable/c/f1d71576d2c9ec8fdb822173fa7f3de79475e9bd

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix double free in SMC transport cleanup path\n\nWhen the generic SCMI code tears down a channel, it calls the chan_free\ncallback function, defined by each transport. Since multiple protocols\nmight share the same transport_info member, chan_free() might want to\nclean up the same member multiple times within the given SCMI transport\nimplementation. In this case, it is SMC transport. This will lead to a NULL\npointer dereference at the second time:\n\n    | scmi_protocol scmi_dev.1: Enabled polling mode TX channel - prot_id:16\n    | arm-scmi firmware:scmi: SCMI Notifications - Core Enabled.\n    | arm-scmi firmware:scmi: unable to communicate with SCMI\n    | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\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=0000000881ef8000\n    | [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n    | Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n    | Modules linked in:\n    | CPU: 4 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-00124-g455ef3d016c9-dirty #793\n    | Hardware name: FVP Base RevC (DT)\n    | pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    | pc : smc_chan_free+0x3c/0x6c\n    | lr : smc_chan_free+0x3c/0x6c\n    | Call trace:\n    |  smc_chan_free+0x3c/0x6c\n    |  idr_for_each+0x68/0xf8\n    |  scmi_cleanup_channels.isra.0+0x2c/0x58\n    |  scmi_probe+0x434/0x734\n    |  platform_probe+0x68/0xd8\n    |  really_probe+0x110/0x27c\n    |  __driver_probe_device+0x78/0x12c\n    |  driver_probe_device+0x3c/0x118\n    |  __driver_attach+0x74/0x128\n    |  bus_for_each_dev+0x78/0xe0\n    |  driver_attach+0x24/0x30\n    |  bus_add_driver+0xe4/0x1e8\n    |  driver_register+0x60/0x128\n    |  __platform_driver_register+0x28/0x34\n    |  scmi_driver_init+0x84/0xc0\n    |  do_one_initcall+0x78/0x33c\n    |  kernel_init_freeable+0x2b8/0x51c\n    |  kernel_init+0x24/0x130\n    |  ret_from_fork+0x10/0x20\n    | Code: f0004701 910a0021 aa1403e5 97b91c70 (b9400280)\n    | ---[ end trace 0000000000000000 ]---\n\nSimply check for the struct pointer being NULL before trying to access\nits members, to avoid this situation.\n\nThis was found when a transport doesn\u0027t really work (for instance no SMC\nservice), the probe routines then tries to clean up, and triggers a crash."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:17:45.161Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0d276d9f335f41d6524258d58c0c0241ef9a83a4"
        },
        {
          "url": "https://git.kernel.org/stable/c/857f56db8c3a71f9871922b6984ff74ad588cb2c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ffaa17ccb1eb1b65cf85db63225a3581c303773"
        },
        {
          "url": "https://git.kernel.org/stable/c/ead445dd3d681020af333649a27306160eee761d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f1d71576d2c9ec8fdb822173fa7f3de79475e9bd"
        }
      ],
      "title": "firmware: arm_scmi: Fix double free in SMC transport cleanup path",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26893",
    "datePublished": "2024-04-17T10:27:45.332Z",
    "dateReserved": "2024-02-19T14:20:24.186Z",
    "dateUpdated": "2024-11-05T09:17:45.161Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

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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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