CVE-2024-56621

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-56621", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:06.016Z", "datePublished": "2024-12-27T14:51:24.948Z", "dateUpdated": "2026-05-11T20:56:00.452Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:56:00.452Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Cancel RTC work during ufshcd_remove()\n\nCurrently, RTC work is only cancelled during __ufshcd_wl_suspend(). When\nufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to\nthis, any further trigger of the RTC work after ufshcd_remove() would\nresult in a NULL pointer dereference as below:\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000002a4\nWorkqueue: events ufshcd_rtc_work\nCall trace:\n _raw_spin_lock_irqsave+0x34/0x8c\n pm_runtime_get_if_active+0x24/0xb4\n ufshcd_rtc_work+0x124/0x19c\n process_scheduled_works+0x18c/0x2d8\n worker_thread+0x144/0x280\n kthread+0x11c/0x128\n ret_from_fork+0x10/0x20\n\nSince RTC work accesses the ufshcd internal structures, it should be cancelled\nwhen ufshcd is removed. So do that in ufshcd_remove(), as per the order in\nufshcd_init()."}], "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": "06701a545e9a3c4e007cff6872a074bf97c40619", "lessThan": "57479e37d3f69efee2f0678568274db773284bc8", "status": "affected", "versionType": "git"}, {"version": "6bf999e0eb41850d5c857102535d5c53b2ede224", "lessThan": "2e7a3bb0331efb292e0fb022c36bc592137f0520", "status": "affected", "versionType": "git"}, {"version": "6bf999e0eb41850d5c857102535d5c53b2ede224", "lessThan": "1695c4361d35b7bdadd7b34f99c9c07741e181e5", "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"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.5", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "6.8", "versionEndExcluding": "6.12.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/57479e37d3f69efee2f0678568274db773284bc8"}, {"url": "https://git.kernel.org/stable/c/2e7a3bb0331efb292e0fb022c36bc592137f0520"}, {"url": "https://git.kernel.org/stable/c/1695c4361d35b7bdadd7b34f99c9c07741e181e5"}], "title": "scsi: ufs: core: Cancel RTC work during ufshcd_remove()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/ufs/core/ufshcd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "57479e37d3f69efee2f0678568274db773284bc8", "status": "affected", "version": "06701a545e9a3c4e007cff6872a074bf97c40619", "versionType": "git"}, {"lessThan": "2e7a3bb0331efb292e0fb022c36bc592137f0520", "status": "affected", "version": "6bf999e0eb41850d5c857102535d5c53b2ede224", "versionType": "git"}, {"lessThan": "1695c4361d35b7bdadd7b34f99c9c07741e181e5", "status": "affected", "version": "6bf999e0eb41850d5c857102535d5c53b2ede224", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/ufs/core/ufshcd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C58B98F0-EB8D-4B95-8BFE-2D99DDAF308D", "versionEndExcluding": "6.12.5", "versionStartIncluding": "6.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "62567B3C-6CEE-46D0-BC2E-B3717FBF7D13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: Cancel RTC work during ufshcd_remove()\n\nCurrently, RTC work is only cancelled during __ufshcd_wl_suspend(). When\nufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to\nthis, any further trigger of the RTC work after ufshcd_remove() would\nresult in a NULL pointer dereference as below:\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000002a4\nWorkqueue: events ufshcd_rtc_work\nCall trace:\n _raw_spin_lock_irqsave+0x34/0x8c\n pm_runtime_get_if_active+0x24/0xb4\n ufshcd_rtc_work+0x124/0x19c\n process_scheduled_works+0x18c/0x2d8\n worker_thread+0x144/0x280\n kthread+0x11c/0x128\n ret_from_fork+0x10/0x20\n\nSince RTC work accesses the ufshcd internal structures, it should be cancelled\nwhen ufshcd is removed. So do that in ufshcd_remove(), as per the order in\nufshcd_init()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: ufs: core: Cancelar el trabajo de RTC durante ufshcd_remove() Actualmente, el trabajo de RTC solo se cancela durante __ufshcd_wl_suspend(). Cuando se elimina ufshcd en ufshcd_remove(), el trabajo de RTC no se cancela. Debido a esto, cualquier activaci\u00f3n adicional del trabajo de RTC despu\u00e9s de ufshcd_remove() dar\u00eda como resultado una desreferencia de puntero NULL como se muestra a continuaci\u00f3n: No se puede gestionar la desreferencia de puntero NULL del n\u00facleo en la direcci\u00f3n virtual 00000000000002a4 Cola de trabajo: eventos ufshcd_rtc_work Rastreo de llamadas: _raw_spin_lock_irqsave+0x34/0x8c pm_runtime_get_if_active+0x24/0xb4 ufshcd_rtc_work+0x124/0x19c process_scheduled_works+0x18c/0x2d8 worker_thread+0x144/0x280 kthread+0x11c/0x128 ret_from_fork+0x10/0x20 Dado que el trabajo de RTC accede a las estructuras internas de ufshcd, se debe cancelar cuando se elimina ufshcd. Haga esto en ufshcd_remove(), seg\u00fan el orden en ufshcd_init()."}], "id": "CVE-2024-56621", "lastModified": "2026-06-17T08:12:34.323", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-12-27T15:15:21.637", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1695c4361d35b7bdadd7b34f99c9c07741e181e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2e7a3bb0331efb292e0fb022c36bc592137f0520"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57479e37d3f69efee2f0678568274db773284bc8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: scsi: ufs: core: Cancel RTC work during ufshcd_remove()", "id": "2334468", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334468"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: ufs: core: Cancel RTC work during ufshcd_remove()\nCurrently, RTC work is only cancelled during __ufshcd_wl_suspend(). When\nufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to\nthis, any further trigger of the RTC work after ufshcd_remove() would\nresult in a NULL pointer dereference as below:\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000002a4\nWorkqueue: events ufshcd_rtc_work\nCall trace:\n_raw_spin_lock_irqsave+0x34/0x8c\npm_runtime_get_if_active+0x24/0xb4\nufshcd_rtc_work+0x124/0x19c\nprocess_scheduled_works+0x18c/0x2d8\nworker_thread+0x144/0x280\nkthread+0x11c/0x128\nret_from_fork+0x10/0x20\nSince RTC work accesses the ufshcd internal structures, it should be cancelled\nwhen ufshcd is removed. So do that in ufshcd_remove(), as per the order in\nufshcd_init()."], "name": "CVE-2024-56621", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56621\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56621\nhttps://lore.kernel.org/linux-cve-announce/2024122710-CVE-2024-56621-98bf@gregkh/T"], "threat_severity": "Moderate"}

{}