CVE-2026-99206

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99206", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.401Z", "datePublished": "2026-10-28T10:35:59.851Z", "dateUpdated": "2026-10-30T12:42:55.447Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:42:55.447Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix race in discovery auth updates\n\nSeparate configfs opens can concurrently update the discovery AuthMethod\nparameter. Both callers may free the same value in\niscsi_update_param_value(), causing a double-free.\n\nProtect the lookup and replacement with the discovery TPG access lock,\nas used by the other TPG configfs parameter updates."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/target/iscsi/iscsi_target_configfs.c"], "versions": [{"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "128dfa7a9b4b3c956e8ac04a169a7ba04960cd75", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "35f3eb8ba914cbe079faf8712101b94ce6b2d821", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "3b206898acaf40f87cf59e97e511a6b60aad9d5e", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "57b6ebcc83afb5338c561ff97ca85dc954a89136", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "083eea404d162c324456cf4ff9912fe8701d936b", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "9b07828b133b326cb4fb59f144ca37f8db535999", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "6caa2b3edb7da4f50a38e16561b75fcae21d4099", "status": "affected", "versionType": "git"}, {"version": "e48354ce078c079996f89d715dfa44814b4eba01", "lessThan": "e15b81f602edbdee39c335546f25486a1747f3f0", "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/target/iscsi/iscsi_target_configfs.c"], "versions": [{"version": "3.1", "status": "affected"}, {"version": "0", "lessThan": "3.1", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.161", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.115", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.59", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "3.1", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.6.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.12.115"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "6.18.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/128dfa7a9b4b3c956e8ac04a169a7ba04960cd75"}, {"url": "https://git.kernel.org/stable/c/35f3eb8ba914cbe079faf8712101b94ce6b2d821"}, {"url": "https://git.kernel.org/stable/c/3b206898acaf40f87cf59e97e511a6b60aad9d5e"}, {"url": "https://git.kernel.org/stable/c/57b6ebcc83afb5338c561ff97ca85dc954a89136"}, {"url": "https://git.kernel.org/stable/c/083eea404d162c324456cf4ff9912fe8701d936b"}, {"url": "https://git.kernel.org/stable/c/9b07828b133b326cb4fb59f144ca37f8db535999"}, {"url": "https://git.kernel.org/stable/c/6caa2b3edb7da4f50a38e16561b75fcae21d4099"}, {"url": "https://git.kernel.org/stable/c/e15b81f602edbdee39c335546f25486a1747f3f0"}], "title": "scsi: target: iscsi: Fix race in discovery auth updates", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/target/iscsi/iscsi_target_configfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "128dfa7a9b4b3c956e8ac04a169a7ba04960cd75", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "35f3eb8ba914cbe079faf8712101b94ce6b2d821", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "3b206898acaf40f87cf59e97e511a6b60aad9d5e", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "57b6ebcc83afb5338c561ff97ca85dc954a89136", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "083eea404d162c324456cf4ff9912fe8701d936b", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "9b07828b133b326cb4fb59f144ca37f8db535999", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "6caa2b3edb7da4f50a38e16561b75fcae21d4099", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}, {"lessThan": "e15b81f602edbdee39c335546f25486a1747f3f0", "status": "affected", "version": "e48354ce078c079996f89d715dfa44814b4eba01", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/target/iscsi/iscsi_target_configfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.1"}, {"lessThan": "3.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.161", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.115", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.59", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.13", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix race in discovery auth updates\n\nSeparate configfs opens can concurrently update the discovery AuthMethod\nparameter. Both callers may free the same value in\niscsi_update_param_value(), causing a double-free.\n\nProtect the lookup and replacement with the discovery TPG access lock,\nas used by the other TPG configfs parameter updates."}], "id": "CVE-2026-99206", "lastModified": "2026-10-30T13:21:53.090", "metrics": {}, "published": "2026-10-28T11:17:41.920", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/083eea404d162c324456cf4ff9912fe8701d936b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/128dfa7a9b4b3c956e8ac04a169a7ba04960cd75"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/35f3eb8ba914cbe079faf8712101b94ce6b2d821"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3b206898acaf40f87cf59e97e511a6b60aad9d5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57b6ebcc83afb5338c561ff97ca85dc954a89136"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6caa2b3edb7da4f50a38e16561b75fcae21d4099"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b07828b133b326cb4fb59f144ca37f8db535999"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e15b81f602edbdee39c335546f25486a1747f3f0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: scsi: target: iscsi: Fix race in discovery auth updates", "id": "2562708", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562708"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-1341", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: target: iscsi: Fix race in discovery auth updates\nSeparate configfs opens can concurrently update the discovery AuthMethod\nparameter. Both callers may free the same value in\niscsi_update_param_value(), causing a double-free.\nProtect the lookup and replacement with the discovery TPG access lock,\nas used by the other TPG configfs parameter updates.", "A flaw was found in the Linux kernel's iSCSI target subsystem. A race condition occurs when concurrent processes update discovery authentication parameters through the configuration filesystem (configfs) without proper locking. A local user could exploit this vulnerability to trigger a double-free condition, potentially resulting in arbitrary code execution or a system crash leading to a Denial of Service (DoS)."], "name": "CVE-2026-99206", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99206\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99206\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99206.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e48354ce078c079996f89d715dfa44814b4eba01,9b07828b133b326cb4fb59f144ca37f8db535999)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e48354ce078c079996f89d715dfa44814b4eba01,6caa2b3edb7da4f50a38e16561b75fcae21d4099)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e48354ce078c079996f89d715dfa44814b4eba01,e15b81f602edbdee39c335546f25486a1747f3f0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e48354ce078c079996f89d715dfa44814b4eba01,9b07828b133b326cb4fb59f144ca37f8db535999)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e48354ce078c079996f89d715dfa44814b4eba01,6caa2b3edb7da4f50a38e16561b75fcae21d4099)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e48354ce078c079996f89d715dfa44814b4eba01,e15b81f602edbdee39c335546f25486a1747f3f0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T12:45:16.179620+00:00", "updated": "2026-10-29T18:30:14.428449+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}