{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-37838", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.952Z", "datePublished": "2025-04-18T14:20:55.389Z", "dateUpdated": "2025-04-25T10:06:49.264Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-04-25T10:06:49.264Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition\n\nIn the ssi_protocol_probe() function, &ssi->work is bound with\nssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function\nwithin the ssip_pn_ops structure is capable of starting the\nwork.\n\nIf we remove the module which will call ssi_protocol_remove()\nto make a cleanup, it will free ssi through kfree(ssi),\nwhile the work mentioned above will be used. The sequence\nof operations that may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | ssip_xmit_work\nssi_protocol_remove |\nkfree(ssi); |\n | struct hsi_client *cl = ssi->cl;\n | // use ssi\n\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hsi/clients/ssi_protocol.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "d58493832e284f066e559b8da5ab20c15a2801d3", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "58eb29dba712ab0f13af59ca2fe545f5ce360e78", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ae5a6a0b425e8f76a9f0677e50796e494e89b088", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "834e602d0cc7c743bfce734fad4a46cefc0f9ab1", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "e3f88665a78045fe35c7669d2926b8d97b892c11", "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/hsi/clients/ssi_protocol.c"], "versions": [{"version": "6.1.135", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.88", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.24", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.12", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.3", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3"}, {"url": "https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78"}, {"url": "https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088"}, {"url": "https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1"}, {"url": "https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f"}, {"url": "https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11"}], "title": "HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition", "x_generator": {"engine": "bippy-1.1.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2025-37838", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-04-21T14:38:43.871416Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-21T14:41:43.037Z"}}]}}

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The sequence\nof operations that may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | ssip_xmit_work\nssi_protocol_remove |\nkfree(ssi); |\n | struct hsi_client *cl = ssi->cl;\n | // use ssi\n\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove()."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-04-25T10:06:49.264Z"}}}, "cveMetadata": {"cveId": "CVE-2025-37838", "state": "PUBLISHED", "dateUpdated": "2025-04-25T10:06:49.264Z", "dateReserved": "2025-04-16T04:51:23.952Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-18T14:20:55.389Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "29C64220-D258-41B3-A931-B8C3456115E5", "versionEndExcluding": "6.1.135", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6E5947E5-45E3-462A-829B-382B3B1C61BD", "versionEndExcluding": "6.6.88", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1D35A8A8-F3EC-45E6-AD37-1F154B27529D", "versionEndExcluding": "6.12.24", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A475784-BF3B-4514-81EE-49C8522FB24A", "versionEndExcluding": "6.13.12", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "483E2E15-2135-4EC6-AB64-16282C5EF704", "versionEndExcluding": "6.14.3", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition\n\nIn the ssi_protocol_probe() function, &ssi->work is bound with\nssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function\nwithin the ssip_pn_ops structure is capable of starting the\nwork.\n\nIf we remove the module which will call ssi_protocol_remove()\nto make a cleanup, it will free ssi through kfree(ssi),\nwhile the work mentioned above will be used. The sequence\nof operations that may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | ssip_xmit_work\nssi_protocol_remove |\nkfree(ssi); |\n | struct hsi_client *cl = ssi->cl;\n | // use ssi\n\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: HSI: ssi_protocol: Se corrige la vulnerabilidad de use-after-free en el controlador ssi_protocol debido a la condici\u00f3n de ejecuci\u00f3n en la funci\u00f3n ssi_protocol_probe(), &ssi->work est\u00e1 enlazada con ssip_xmit_work(), En ssip_pn_setup(), la funci\u00f3n ssip_pn_xmit() dentro de la estructura ssip_pn_ops es capaz de iniciar el trabajo. Si eliminamos el m\u00f3dulo que llamar\u00e1 a ssi_protocol_remove() para hacer una limpieza, liberar\u00e1 ssi a trav\u00e9s de kfree(ssi), mientras que el trabajo mencionado anteriormente se utilizar\u00e1. La secuencia de operaciones que puede llevar a un error de UAF es la siguiente: CPU0 CPU1 | ssip_xmit_work ssi_protocol_remove | kfree(ssi); | | struct hsi_client *cl = ssi->cl; | // use ssi Corr\u00edjalo asegur\u00e1ndose de que el trabajo se cancele antes de continuar con la limpieza en ssi_protocol_remove()."}], "id": "CVE-2025-37838", "lastModified": "2025-04-25T18:40:30.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-04-18T15:15:59.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition", "id": "2360979", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360979"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nHSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition\nIn the ssi_protocol_probe() function, &ssi->work is bound with\nssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function\nwithin the ssip_pn_ops structure is capable of starting the\nwork.\nIf we remove the module which will call ssi_protocol_remove()\nto make a cleanup, it will free ssi through kfree(ssi),\nwhile the work mentioned above will be used. The sequence\nof operations that may lead to a UAF bug is as follows:\nCPU0 CPU1\n| ssip_xmit_work\nssi_protocol_remove |\nkfree(ssi); |\n| struct hsi_client *cl = ssi->cl;\n| // use ssi\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove()."], "name": "CVE-2025-37838", "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": "2025-04-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37838\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37838\nhttps://lore.kernel.org/linux-cve-announce/2025041858-CVE-2025-37838-2253@gregkh/T"], "threat_severity": "Moderate"}