CVE-2025-68224 (GCVE-0-2025-68224)
Vulnerability from cvelistv5
Published
2025-12-16 13:57
Modified
2025-12-16 13:57
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix a regression triggered by scsi_host_busy() Commit 995412e23bb2 ("blk-mq: Replace tags->lock with SRCU for tag iterators") introduced the following regression: Call trace: __srcu_read_lock+0x30/0x80 (P) blk_mq_tagset_busy_iter+0x44/0x300 scsi_host_busy+0x38/0x70 ufshcd_print_host_state+0x34/0x1bc ufshcd_link_startup.constprop.0+0xe4/0x2e0 ufshcd_init+0x944/0xf80 ufshcd_pltfrm_init+0x504/0x820 ufs_rockchip_probe+0x2c/0x88 platform_probe+0x5c/0xa4 really_probe+0xc0/0x38c __driver_probe_device+0x7c/0x150 driver_probe_device+0x40/0x120 __driver_attach+0xc8/0x1e0 bus_for_each_dev+0x7c/0xdc driver_attach+0x24/0x30 bus_add_driver+0x110/0x230 driver_register+0x68/0x130 __platform_driver_register+0x20/0x2c ufs_rockchip_pltform_init+0x1c/0x28 do_one_initcall+0x60/0x1e0 kernel_init_freeable+0x248/0x2c4 kernel_init+0x20/0x140 ret_from_fork+0x10/0x20 Fix this regression by making scsi_host_busy() check whether the SCSI host tag set has already been initialized. tag_set->ops is set by scsi_mq_setup_tags() just before blk_mq_alloc_tag_set() is called. This fix is based on the assumption that scsi_host_busy() and scsi_mq_setup_tags() calls are serialized. This is the case in the UFS driver.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/hosts.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.118",
              "versionType": "semver"
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              "version": "6.12.60",
              "versionType": "semver"
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              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix a regression triggered by scsi_host_busy()\n\nCommit 995412e23bb2 (\"blk-mq: Replace tags-\u003elock with SRCU for tag\niterators\") introduced the following regression:\n\nCall trace:\n __srcu_read_lock+0x30/0x80 (P)\n blk_mq_tagset_busy_iter+0x44/0x300\n scsi_host_busy+0x38/0x70\n ufshcd_print_host_state+0x34/0x1bc\n ufshcd_link_startup.constprop.0+0xe4/0x2e0\n ufshcd_init+0x944/0xf80\n ufshcd_pltfrm_init+0x504/0x820\n ufs_rockchip_probe+0x2c/0x88\n platform_probe+0x5c/0xa4\n really_probe+0xc0/0x38c\n __driver_probe_device+0x7c/0x150\n driver_probe_device+0x40/0x120\n __driver_attach+0xc8/0x1e0\n bus_for_each_dev+0x7c/0xdc\n driver_attach+0x24/0x30\n bus_add_driver+0x110/0x230\n driver_register+0x68/0x130\n __platform_driver_register+0x20/0x2c\n ufs_rockchip_pltform_init+0x1c/0x28\n do_one_initcall+0x60/0x1e0\n kernel_init_freeable+0x248/0x2c4\n kernel_init+0x20/0x140\n ret_from_fork+0x10/0x20\n\nFix this regression by making scsi_host_busy() check whether the SCSI\nhost tag set has already been initialized. tag_set-\u003eops is set by\nscsi_mq_setup_tags() just before blk_mq_alloc_tag_set() is called. This\nfix is based on the assumption that scsi_host_busy() and\nscsi_mq_setup_tags() calls are serialized. This is the case in the UFS\ndriver."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:57:17.541Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/143257917b836bd5fc434063030fda199e249624"
        },
        {
          "url": "https://git.kernel.org/stable/c/804b5b8e3545445450387ae6891262c421c49304"
        },
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          "url": "https://git.kernel.org/stable/c/d579f496681c5136d63cb4fbb685511227e73602"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d778778b40bcdfd9f8817fea1ec6ebcbec69c0a"
        },
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          "url": "https://git.kernel.org/stable/c/47c8b35a1f1d53aac156480cea0a0c5c82919f03"
        },
        {
          "url": "https://git.kernel.org/stable/c/e208fb1660c4a43f06b7b66c3ff22dde84ec3990"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0b7780602b1b196f47e527fec82166a7e67c4d0"
        }
      ],
      "title": "scsi: core: Fix a regression triggered by scsi_host_busy()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68224",
    "datePublished": "2025-12-16T13:57:17.541Z",
    "dateReserved": "2025-12-16T13:41:40.257Z",
    "dateUpdated": "2025-12-16T13:57:17.541Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68224\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-16T14:15:55.767\",\"lastModified\":\"2025-12-18T15:08:06.237\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: core: Fix a regression triggered by scsi_host_busy()\\n\\nCommit 995412e23bb2 (\\\"blk-mq: Replace tags-\u003elock with SRCU for tag\\niterators\\\") introduced the following regression:\\n\\nCall trace:\\n __srcu_read_lock+0x30/0x80 (P)\\n blk_mq_tagset_busy_iter+0x44/0x300\\n scsi_host_busy+0x38/0x70\\n ufshcd_print_host_state+0x34/0x1bc\\n ufshcd_link_startup.constprop.0+0xe4/0x2e0\\n ufshcd_init+0x944/0xf80\\n ufshcd_pltfrm_init+0x504/0x820\\n ufs_rockchip_probe+0x2c/0x88\\n platform_probe+0x5c/0xa4\\n really_probe+0xc0/0x38c\\n __driver_probe_device+0x7c/0x150\\n driver_probe_device+0x40/0x120\\n __driver_attach+0xc8/0x1e0\\n bus_for_each_dev+0x7c/0xdc\\n driver_attach+0x24/0x30\\n bus_add_driver+0x110/0x230\\n driver_register+0x68/0x130\\n __platform_driver_register+0x20/0x2c\\n ufs_rockchip_pltform_init+0x1c/0x28\\n do_one_initcall+0x60/0x1e0\\n kernel_init_freeable+0x248/0x2c4\\n kernel_init+0x20/0x140\\n ret_from_fork+0x10/0x20\\n\\nFix this regression by making scsi_host_busy() check whether the SCSI\\nhost tag set has already been initialized. tag_set-\u003eops is set by\\nscsi_mq_setup_tags() just before blk_mq_alloc_tag_set() is called. This\\nfix is based on the assumption that scsi_host_busy() and\\nscsi_mq_setup_tags() calls are serialized. This is the case in the UFS\\ndriver.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/143257917b836bd5fc434063030fda199e249624\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/47c8b35a1f1d53aac156480cea0a0c5c82919f03\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5d778778b40bcdfd9f8817fea1ec6ebcbec69c0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/804b5b8e3545445450387ae6891262c421c49304\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a0b7780602b1b196f47e527fec82166a7e67c4d0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d579f496681c5136d63cb4fbb685511227e73602\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e208fb1660c4a43f06b7b66c3ff22dde84ec3990\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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