CVE-2022-49376

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Avoid this by removing\nthe call to sd_zbc_release_disk() in sd_probe() error path.\n\nThis change is safe and does not result in zone information memory leakage\nbecause the zone information for a zoned disk is allocated only when\nsd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set,\nresulting in sd_disk_release() being called when needed to cleanup a disk\nzone information using sd_zbc_release_disk()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/sd.c"], "versions": [{"version": "89d9475610771b5e5fe1879075f0fc9ba6e3755f", "lessThan": "c1f0187025905e9981000d44a92e159468b561a8", "status": "affected", "versionType": "git"}, {"version": "89d9475610771b5e5fe1879075f0fc9ba6e3755f", "lessThan": "0fcb0b131cc90c8f523a293d84c58d0c7273c96f", "status": "affected", "versionType": "git"}, {"version": "89d9475610771b5e5fe1879075f0fc9ba6e3755f", "lessThan": "78f8e96df06e2d04d82d4071c299b59d28744f47", "status": "affected", "versionType": "git"}, {"version": "89d9475610771b5e5fe1879075f0fc9ba6e3755f", "lessThan": "3733439593ad12f7b54ae35c273ea6f15d692de3", "status": "affected", "versionType": "git"}, {"version": "89d9475610771b5e5fe1879075f0fc9ba6e3755f", "lessThan": "05fbde3a77a4f1d62e4c4428f384288c1f1a0be5", "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/scsi/sd.c"], "versions": [{"version": "4.10", "status": "affected"}, {"version": "0", "lessThan": "4.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.122", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.4", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "4.10", "versionEndExcluding": "5.10.122"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.15.47"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.17.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.18.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c1f0187025905e9981000d44a92e159468b561a8"}, {"url": "https://git.kernel.org/stable/c/0fcb0b131cc90c8f523a293d84c58d0c7273c96f"}, {"url": "https://git.kernel.org/stable/c/78f8e96df06e2d04d82d4071c299b59d28744f47"}, {"url": "https://git.kernel.org/stable/c/3733439593ad12f7b54ae35c273ea6f15d692de3"}, {"url": "https://git.kernel.org/stable/c/05fbde3a77a4f1d62e4c4428f384288c1f1a0be5"}], "title": "scsi: sd: Fix potential NULL pointer dereference", "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-2022-49376", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T19:41:58.424102Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:52.245Z"}}]}}

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This causes a NULL pointer dereference\nwhen sd_is_zoned() is called inside that function. Avoid this by removing\nthe call to sd_zbc_release_disk() in sd_probe() error path.\n\nThis change is safe and does not result in zone information memory leakage\nbecause the zone information for a zoned disk is allocated only when\nsd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set,\nresulting in sd_disk_release() being called when needed to cleanup a disk\nzone information using sd_zbc_release_disk()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.122", "versionStartIncluding": "4.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.47", "versionStartIncluding": "4.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17.15", "versionStartIncluding": "4.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.18.4", "versionStartIncluding": "4.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.19", "versionStartIncluding": "4.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:58:29.817Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49376", "state": "PUBLISHED", "dateUpdated": "2026-05-11T18:58:29.817Z", "dateReserved": "2025-02-26T02:08:31.558Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-02-26T02:11:16.118Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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This causes a NULL pointer dereference\nwhen sd_is_zoned() is called inside that function. Avoid this by removing\nthe call to sd_zbc_release_disk() in sd_probe() error path.\n\nThis change is safe and does not result in zone information memory leakage\nbecause the zone information for a zoned disk is allocated only when\nsd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set,\nresulting in sd_disk_release() being called when needed to cleanup a disk\nzone information using sd_zbc_release_disk()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: sd: Se corrige una posible desreferencia de puntero NULL Si sd_probe() detecta un error temprano antes de que se inicialice sdkp->device, se llama a sd_zbc_release_disk(). Esto provoca una desreferencia de puntero NULL cuando se llama a sd_is_zoned() dentro de esa funci\u00f3n. Evite esto eliminando la llamada a sd_zbc_release_disk() en la ruta de error de sd_probe(). Este cambio es seguro y no da como resultado una p\u00e9rdida de memoria de informaci\u00f3n de zona porque la informaci\u00f3n de zona para un disco zonificado se asigna solo cuando se llama a sd_revalidate_disk(), momento en el que sdkp->disk_dev est\u00e1 completamente configurado, lo que da como resultado que se llame a sd_disk_release() cuando sea necesario para limpiar la informaci\u00f3n de zona de un disco mediante sd_zbc_release_disk()."}], "id": "CVE-2022-49376", "lastModified": "2026-06-17T05:17:52.310", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49376", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:41:58.424102Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:01:14.260", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/05fbde3a77a4f1d62e4c4428f384288c1f1a0be5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0fcb0b131cc90c8f523a293d84c58d0c7273c96f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3733439593ad12f7b54ae35c273ea6f15d692de3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78f8e96df06e2d04d82d4071c299b59d28744f47"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c1f0187025905e9981000d44a92e159468b561a8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2023:2951", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-477.10.1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-05-16T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}], "bugzilla": {"description": "kernel: scsi: sd: Fix potential NULL pointer dereference", "id": "2347964", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347964"}, "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": "verified"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: sd: Fix potential NULL pointer dereference\nIf sd_probe() sees an early error before sdkp->device is initialized,\nsd_zbc_release_disk() is called. This causes a NULL pointer dereference\nwhen sd_is_zoned() is called inside that function. Avoid this by removing\nthe call to sd_zbc_release_disk() in sd_probe() error path.\nThis change is safe and does not result in zone information memory leakage\nbecause the zone information for a zoned disk is allocated only when\nsd_revalidate_disk() is called, at which point sdkp->disk_dev is fully set,\nresulting in sd_disk_release() being called when needed to cleanup a disk\nzone information using sd_zbc_release_disk().", "A flaw was found in the Linux kernel's SCSI subsystem. A NULL pointer dereference can be triggered when an error occurs before the sdkp->device object is fully initialized, causing a system crash and a denial of service."], "name": "CVE-2022-49376", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49376\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49376\nhttps://lore.kernel.org/linux-cve-announce/2025022646-CVE-2022-49376-9ec1@gregkh/T"], "statement": "This issue has been fixed in Red Hat Enterprise Linux 8.8 and 9.2 via RHSA-2023:2951 [1] and RHSA-2023:2458 [2], respectively.\n[1]. https://access.redhat.com/errata/RHSA-2023:2951\n[2]. https://access.redhat.com/errata/RHSA-2023:2458", "threat_severity": "Low"}

{}