| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Fix use-after free in init error and remove paths\n\ndevm_blk_crypto_profile_init() registers a cleanup handler to run when\nthe associated (platform-) device is being released. For UFS, the\ncrypto private data and pointers are stored as part of the ufs_hba's\ndata structure 'struct ufs_hba::crypto_profile'. This structure is\nallocated as part of the underlying ufshcd and therefore Scsi_host\nallocation.\n\nDuring driver release or during error handling in ufshcd_pltfrm_init(),\nthis structure is released as part of ufshcd_dealloc_host() before the\n(platform-) device associated with the crypto call above is released.\nOnce this device is released, the crypto cleanup code will run, using\nthe just-released 'struct ufs_hba::crypto_profile'. This causes a\nuse-after-free situation:\n\n Call trace:\n kfree+0x60/0x2d8 (P)\n kvfree+0x44/0x60\n blk_crypto_profile_destroy_callback+0x28/0x70\n devm_action_release+0x1c/0x30\n release_nodes+0x6c/0x108\n devres_release_all+0x98/0x100\n device_unbind_cleanup+0x20/0x70\n really_probe+0x218/0x2d0\n\nIn other words, the initialisation code flow is:\n\n platform-device probe\n ufshcd_pltfrm_init()\n ufshcd_alloc_host()\n scsi_host_alloc()\n allocation of struct ufs_hba\n creation of scsi-host devices\n devm_blk_crypto_profile_init()\n devm registration of cleanup handler using platform-device\n\nand during error handling of ufshcd_pltfrm_init() or during driver\nremoval:\n\n ufshcd_dealloc_host()\n scsi_host_put()\n put_device(scsi-host)\n release of struct ufs_hba\n put_device(platform-device)\n crypto cleanup handler\n\nTo fix this use-after free, change ufshcd_alloc_host() to register a\ndevres action to automatically cleanup the underlying SCSI device on\nufshcd destruction, without requiring explicit calls to\nufshcd_dealloc_host(). This way:\n\n * the crypto profile and all other ufs_hba-owned resources are\n destroyed before SCSI (as they've been registered after)\n * a memleak is plugged in tc-dwc-g210-pci.c remove() as a\n side-effect\n * EXPORT_SYMBOL_GPL(ufshcd_dealloc_host) can be removed fully as\n it's not needed anymore\n * no future drivers using ufshcd_alloc_host() could ever forget\n adding the cleanup" |
| } |
| ], |
| "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", |
| "drivers/ufs/host/ufshcd-pci.c", |
| "drivers/ufs/host/ufshcd-pltfrm.c", |
| "include/ufs/ufshcd.h" |
| ], |
| "versions": [ |
| { |
| "version": "d76d9d7d1009968dd3a0fc30e5f5ee9fbffc1350", |
| "lessThan": "0c77c0d754fe83cb154715fcfec6c3faef94f207", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d76d9d7d1009968dd3a0fc30e5f5ee9fbffc1350", |
| "lessThan": "9c185beae09a3eb85f54777edafa227f7e03075d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d76d9d7d1009968dd3a0fc30e5f5ee9fbffc1350", |
| "lessThan": "f8fb2403ddebb5eea0033d90d9daae4c88749ada", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "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", |
| "drivers/ufs/host/ufshcd-pci.c", |
| "drivers/ufs/host/ufshcd-pltfrm.c", |
| "include/ufs/ufshcd.h" |
| ], |
| "versions": [ |
| { |
| "version": "5.12", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.12", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.14", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.3", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14", |
| "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": "5.12", |
| "versionEndExcluding": "6.12.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.12", |
| "versionEndExcluding": "6.13.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.12", |
| "versionEndExcluding": "6.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/0c77c0d754fe83cb154715fcfec6c3faef94f207" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9c185beae09a3eb85f54777edafa227f7e03075d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f8fb2403ddebb5eea0033d90d9daae4c88749ada" |
| } |
| ], |
| "title": "scsi: ufs: core: Fix use-after free in init error and remove paths", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21739", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
