{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53387", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:54:09.737Z", "datePublished": "2025-09-18T13:33:30.635Z", "dateUpdated": "2026-08-05T09:13:50.499Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:13:50.499Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix device management cmd timeout flow\n\nIn the UFS error handling flow, the host will send a device management cmd\n(NOP OUT) to the device for link recovery. If this cmd times out and\nclearing the doorbell fails, ufshcd_wait_for_dev_cmd() will do nothing and\nreturn. hba->dev_cmd.complete struct is not set to NULL.\n\nWhen this happens, if cmd has been completed by device, then we will call\ncomplete() in __ufshcd_transfer_req_compl(). Because the complete struct is\nallocated on the stack, the following crash will occur:\n\n ipanic_die+0x24/0x38 [mrdump]\n die+0x344/0x748\n arm64_notify_die+0x44/0x104\n do_debug_exception+0x104/0x1e0\n el1_dbg+0x38/0x54\n el1_sync_handler+0x40/0x88\n el1_sync+0x8c/0x140\n queued_spin_lock_slowpath+0x2e4/0x3c0\n __ufshcd_transfer_req_compl+0x3b0/0x1164\n ufshcd_trc_handler+0x15c/0x308\n ufshcd_host_reset_and_restore+0x54/0x260\n ufshcd_reset_and_restore+0x28c/0x57c\n ufshcd_err_handler+0xeb8/0x1b6c\n process_one_work+0x288/0x964\n worker_thread+0x4bc/0xc7c\n kthread+0x15c/0x264\n ret_from_fork+0x10/0x30" } ], "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 bug is in the UFS host controller core (`ufshcd_wait_for_dev_cmd` / `ufshcd_exec_dev_cmd`), reached via local storage I/O that drives the SCSI/UFS error handler, or via local `/dev/ufs-bsg` UPIU submission. UFS is onboard soldered flash with no network or adjacent-protocol exposure.\nAC:L - A local attacker can force the error-recovery path with sustained/deep-queue I/O that times out commands; during link recovery the NOP OUT commonly times out and doorbell clear fails when the link/device is unhealthy (as in the reported MediaTek crash), after which the dangling `complete()` is deterministic and retryable.\nPR:L - An ordinary local account with access to UFS-backed storage can generate I/O that enters `ufshcd_err_handler` → `ufshcd_reset_and_restore` → `ufshcd_verify_dev_init` without root, CAP_SYS_RAWIO, or init-namespace privileges, matching other scored UFS EH bugs.\nUI:N - The vulnerable wait/complete sequence runs entirely inside the kernel UFS error-handler workqueue in response to the attacker’s own I/O; no separate victim mount, open, or interactive action is required.\nS:U - The dangling stack completion and resulting corruption stay inside the host kernel that owns the UFS controller; no VM escape, IOMMU bypass, or sandbox boundary is crossed.\nC:H - This is a use-after-free of the stack-allocated `struct completion`: after `ufshcd_exec_dev_cmd` returns, `complete(hba->dev_cmd.complete)` still runs and `swake_up_locked()` walks the reused `wait.task_list`, which with stack-frame reuse is a UAF read/wake primitive over kernel memory.\nI:H - `complete()` writes `done++` and takes/releases the wait-queue spinlock on the freed stack slot, so subsequent frames’ locals are corrupted; a forged wait-queue on that reused stack yields the classic completion/wait-queue write primitive usable for control-flow hijack.\nA:H - The reported failure is an unrecoverable kernel die in `queued_spin_lock_slowpath` from `__ufshcd_transfer_req_compl` during `ufshcd_err_handler`, panicking or hanging the system’s storage stack." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/ufs/core/ufshcd.c" ], "versions": [ { "version": "f5c2976e0cb0f6236013bfb479868531b04f61d4", "lessThan": "cf45493432704786a0f8294c7723ad4eeb5fff24", "status": "affected", "versionType": "git" }, { "version": "f5c2976e0cb0f6236013bfb479868531b04f61d4", "lessThan": "3ffd2cd644e0f1eea01339831bac4b1054e8817c", "status": "affected", "versionType": "git" }, { "version": "f5c2976e0cb0f6236013bfb479868531b04f61d4", "lessThan": "36822124f9de200cedc2f42516301b50d386a6cd", "status": "affected", "versionType": "git" }, { "version": "8841c1b02c8083e4451077a2b1f235bbfd0db105", "status": "affected", "versionType": "git" }, { "version": "5.18.16", "lessThan": "5.19", "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/ufs/core/ufshcd.c" ], "versions": [ { "version": "5.19", "status": "affected" }, { "version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.16", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2.3", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3", "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": "5.19", "versionEndExcluding": "6.1.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.2.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/cf45493432704786a0f8294c7723ad4eeb5fff24" }, { "url": "https://git.kernel.org/stable/c/3ffd2cd644e0f1eea01339831bac4b1054e8817c" }, { "url": "https://git.kernel.org/stable/c/36822124f9de200cedc2f42516301b50d386a6cd" } ], "title": "scsi: ufs: core: Fix device management cmd timeout flow", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2023-53387", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:58:04.971450Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T19:03:05.063Z" } } ] } }