{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2021-47622",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-07-16T11:26:52.955Z",
        "datePublished": "2024-07-16T11:29:38.339Z",
        "dateUpdated": "2026-05-23T15:20:21.046Z"
    },
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                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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                "dateUpdated": "2026-05-23T15:20:21.046Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: Fix a deadlock in the error handler\n\nThe following deadlock has been observed on a test setup:\n\n - All tags allocated\n\n - The SCSI error handler calls ufshcd_eh_host_reset_handler()\n\n - ufshcd_eh_host_reset_handler() queues work that calls\n   ufshcd_err_handler()\n\n - ufshcd_err_handler() locks up as follows:\n\nWorkqueue: ufs_eh_wq_0 ufshcd_err_handler.cfi_jt\nCall trace:\n __switch_to+0x298/0x5d8\n __schedule+0x6cc/0xa94\n schedule+0x12c/0x298\n blk_mq_get_tag+0x210/0x480\n __blk_mq_alloc_request+0x1c8/0x284\n blk_get_request+0x74/0x134\n ufshcd_exec_dev_cmd+0x68/0x640\n ufshcd_verify_dev_init+0x68/0x35c\n ufshcd_probe_hba+0x12c/0x1cb8\n ufshcd_host_reset_and_restore+0x88/0x254\n ufshcd_reset_and_restore+0xd0/0x354\n ufshcd_err_handler+0x408/0xc58\n process_one_work+0x24c/0x66c\n worker_thread+0x3e8/0xa4c\n kthread+0x150/0x1b4\n ret_from_fork+0x10/0x30\n\nFix this lockup by making ufshcd_exec_dev_cmd() allocate a reserved\nrequest."
                }
            ],
            "affected": [
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/scsi/ufs/ufshcd.c",
                        "drivers/scsi/ufs/ufshcd.h"
                    ],
                    "versions": [
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                            "version": "7252a3603015f1fd04363956f4b72a537c9f9c42",
                            "lessThan": "493c9e850677df8b4eda150c2364b1c1a72ed724",
                            "status": "affected",
                            "versionType": "git"
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                            "lessThan": "d69d98d8edf90e25e4e09930dd36dd6d09dd6768",
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                            "status": "affected",
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                        },
                        {
                            "version": "a8d2d45c70c7391386baf7863674f156da56a3d5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.4.112",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/scsi/ufs/ufshcd.c",
                        "drivers/scsi/ufs/ufshcd.h"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
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                            "version": "0",
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                            "version": "5.15.25",
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                            "versionType": "semver"
                        },
                        {
                            "version": "5.16.11",
                            "lessThanOrEqual": "5.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.17",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
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                            "negate": false,
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                                    "vulnerable": true,
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                    "url": "https://git.kernel.org/stable/c/945c3cca05d78351bba29fa65d93834cb7934c7b"
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            "title": "scsi: ufs: Fix a deadlock in the error handler",
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