{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68162", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.372Z", "datePublished": "2026-08-10T11:59:29.099Z", "dateUpdated": "2026-08-10T11:59:29.099Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T11:59:29.099Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: avoid auth_enable sysctl UAF during netns teardown\n\nproc_sctp_do_auth() updates the SCTP control socket after changing\nnet.sctp.auth_enable. The handler gets the per-net SCTP state from\nctl->data, so an already opened sysctl file can still target a network\nnamespace while that namespace is being torn down.\n\nSCTP previously registered its per-net sysctls from sctp_defaults_init(),\nwhile the control socket is created later from sctp_ctrlsock_init(). This\nexposed a window during initialization where auth_enable was writable\nbefore net->sctp.ctl_sock existed, and a teardown window where auth_enable\nstayed writable after inet_ctl_sock_destroy() had released the control\nsocket.\n\nMove the per-net SCTP sysctl registration into sctp_ctrlsock_init() after\nsctp_ctl_sock_init() succeeds, and unregister the sysctl table before\ndestroying the control socket in sctp_ctrlsock_exit(). If sysctl\nregistration fails after the control socket was created, destroy the\ncontrol socket in the same init path.\n\nMake sctp_sysctl_net_unregister() tolerate a missing header and clear the\nsaved pointer so init-error and exit paths can safely share the unregister\nhelper."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sctp/protocol.c", "net/sctp/sysctl.c"], "versions": [{"version": "10c869a52f266e40f548cc3c565d14930a5edafc", "lessThan": "19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4", "status": "affected", "versionType": "git"}, {"version": "7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6", "lessThan": "66700c0719675e0e118ae83b2d7168dacd69dd3d", "status": "affected", "versionType": "git"}, {"version": "c184bc621e3cef03ac9ba81a50dda2dae6a21d36", "lessThan": "626bda8cfe43dff19a9833ff6ba055a817b5455c", "status": "affected", "versionType": "git"}, {"version": "15649fd5415eda664ef35780c2013adeb5d9c695", "lessThan": "be6aae9d1b91c603adb35872d37d40e83daf8758", "status": "affected", "versionType": "git"}, {"version": "15649fd5415eda664ef35780c2013adeb5d9c695", "lessThan": "a50e73488e0bbdd262b3be3c9a1d8dd078382381", "status": "affected", "versionType": "git"}, {"version": "15649fd5415eda664ef35780c2013adeb5d9c695", "lessThan": "f8d5e7846025f4ab15a461235f8ebae9094a361a", "status": "affected", "versionType": "git"}, {"version": "dc583e7e5f8515ca489c0df28e4362a70eade382", "status": "affected", "versionType": "git"}, {"version": "bd2a2939423566c654545fa3e96a656662a0af9e", "status": "affected", "versionType": "git"}, {"version": "1b67030d39f2b00f94ac1f0af11ba6657589e4d3", "status": "affected", "versionType": "git"}, {"version": "5.4.290", "lessThan": "5.4.292", "status": "affected", "versionType": "semver"}, {"version": "6.6.72", "lessThan": "6.6.151", "status": "affected", "versionType": "semver"}, {"version": "6.12.10", "lessThan": "6.12.101", "status": "affected", "versionType": "semver"}, {"version": "5.10.234", "lessThan": "5.11", "status": "affected", "versionType": "semver"}, {"version": "5.15.177", "lessThan": "5.16", "status": "affected", "versionType": "semver"}, {"version": "6.1.125", "lessThan": "6.2", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sctp/protocol.c", "net/sctp/sysctl.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.292", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc5", "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": "5.4.290", "versionEndExcluding": "5.4.292"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.72", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.10", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2-rc5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.234"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.177"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.125"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4"}, {"url": "https://git.kernel.org/stable/c/66700c0719675e0e118ae83b2d7168dacd69dd3d"}, {"url": "https://git.kernel.org/stable/c/626bda8cfe43dff19a9833ff6ba055a817b5455c"}, {"url": "https://git.kernel.org/stable/c/be6aae9d1b91c603adb35872d37d40e83daf8758"}, {"url": "https://git.kernel.org/stable/c/a50e73488e0bbdd262b3be3c9a1d8dd078382381"}, {"url": "https://git.kernel.org/stable/c/f8d5e7846025f4ab15a461235f8ebae9094a361a"}], "title": "sctp: avoid auth_enable sysctl UAF during netns teardown", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/sctp/protocol.c", "net/sctp/sysctl.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4", "status": "affected", "version": "10c869a52f266e40f548cc3c565d14930a5edafc", "versionType": "git"}, {"lessThan": "66700c0719675e0e118ae83b2d7168dacd69dd3d", "status": "affected", "version": "7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6", "versionType": "git"}, {"lessThan": "626bda8cfe43dff19a9833ff6ba055a817b5455c", "status": "affected", "version": "c184bc621e3cef03ac9ba81a50dda2dae6a21d36", "versionType": "git"}, {"lessThan": "be6aae9d1b91c603adb35872d37d40e83daf8758", "status": "affected", "version": "15649fd5415eda664ef35780c2013adeb5d9c695", "versionType": "git"}, {"lessThan": "a50e73488e0bbdd262b3be3c9a1d8dd078382381", "status": "affected", "version": "15649fd5415eda664ef35780c2013adeb5d9c695", "versionType": "git"}, {"lessThan": "f8d5e7846025f4ab15a461235f8ebae9094a361a", "status": "affected", "version": "15649fd5415eda664ef35780c2013adeb5d9c695", "versionType": "git"}, {"status": "affected", "version": "dc583e7e5f8515ca489c0df28e4362a70eade382", "versionType": "git"}, {"status": "affected", "version": "bd2a2939423566c654545fa3e96a656662a0af9e", "versionType": "git"}, {"status": "affected", "version": "1b67030d39f2b00f94ac1f0af11ba6657589e4d3", "versionType": "git"}, {"lessThan": "5.4.292", "status": "affected", "version": "5.4.290", "versionType": "semver"}, {"lessThan": "6.6.151", "status": "affected", "version": "6.6.72", "versionType": "semver"}, {"lessThan": "6.12.101", "status": "affected", "version": "6.12.10", "versionType": "semver"}, {"lessThan": "5.11", "status": "affected", "version": "5.10.234", "versionType": "semver"}, {"lessThan": "5.16", "status": "affected", "version": "5.15.177", "versionType": "semver"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.125", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/sctp/protocol.c", "net/sctp/sysctl.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.292", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.151", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc5", "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\nsctp: avoid auth_enable sysctl UAF during netns teardown\n\nproc_sctp_do_auth() updates the SCTP control socket after changing\nnet.sctp.auth_enable. The handler gets the per-net SCTP state from\nctl->data, so an already opened sysctl file can still target a network\nnamespace while that namespace is being torn down.\n\nSCTP previously registered its per-net sysctls from sctp_defaults_init(),\nwhile the control socket is created later from sctp_ctrlsock_init(). This\nexposed a window during initialization where auth_enable was writable\nbefore net->sctp.ctl_sock existed, and a teardown window where auth_enable\nstayed writable after inet_ctl_sock_destroy() had released the control\nsocket.\n\nMove the per-net SCTP sysctl registration into sctp_ctrlsock_init() after\nsctp_ctl_sock_init() succeeds, and unregister the sysctl table before\ndestroying the control socket in sctp_ctrlsock_exit(). If sysctl\nregistration fails after the control socket was created, destroy the\ncontrol socket in the same init path.\n\nMake sctp_sysctl_net_unregister() tolerate a missing header and clear the\nsaved pointer so init-error and exit paths can safely share the unregister\nhelper."}], "id": "CVE-2026-68162", "lastModified": "2026-08-10T13:20:02.570", "metrics": {}, "published": "2026-08-10T13:20:02.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/626bda8cfe43dff19a9833ff6ba055a817b5455c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/66700c0719675e0e118ae83b2d7168dacd69dd3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a50e73488e0bbdd262b3be3c9a1d8dd078382381"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be6aae9d1b91c603adb35872d37d40e83daf8758"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f8d5e7846025f4ab15a461235f8ebae9094a361a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: SCTP Use-After-Free vulnerability during network namespace teardown", "id": "2513314", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513314"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsctp: avoid auth_enable sysctl UAF during netns teardown\nproc_sctp_do_auth() updates the SCTP control socket after changing\nnet.sctp.auth_enable. The handler gets the per-net SCTP state from\nctl->data, so an already opened sysctl file can still target a network\nnamespace while that namespace is being torn down.\nSCTP previously registered its per-net sysctls from sctp_defaults_init(),\nwhile the control socket is created later from sctp_ctrlsock_init(). This\nexposed a window during initialization where auth_enable was writable\nbefore net->sctp.ctl_sock existed, and a teardown window where auth_enable\nstayed writable after inet_ctl_sock_destroy() had released the control\nsocket.\nMove the per-net SCTP sysctl registration into sctp_ctrlsock_init() after\nsctp_ctl_sock_init() succeeds, and unregister the sysctl table before\ndestroying the control socket in sctp_ctrlsock_exit(). If sysctl\nregistration fails after the control socket was created, destroy the\ncontrol socket in the same init path.\nMake sctp_sysctl_net_unregister() tolerate a missing header and clear the\nsaved pointer so init-error and exit paths can safely share the unregister\nhelper.", "A flaw was found in the Stream Control Transmission Protocol (SCTP) implementation within the Linux kernel. This Use-After-Free (UAF) vulnerability occurs during network namespace (netns) teardown. A local attacker with the ability to open a sysctl file could exploit this flaw, potentially leading to a system crash or other undefined behavior due to memory corruption."], "name": "CVE-2026-68162", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T11:59:29Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68162\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68162\nhttps://git.kernel.org/stable/c/19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4\nhttps://git.kernel.org/stable/c/626bda8cfe43dff19a9833ff6ba055a817b5455c\nhttps://git.kernel.org/stable/c/66700c0719675e0e118ae83b2d7168dacd69dd3d\nhttps://git.kernel.org/stable/c/a50e73488e0bbdd262b3be3c9a1d8dd078382381\nhttps://git.kernel.org/stable/c/be6aae9d1b91c603adb35872d37d40e83daf8758\nhttps://git.kernel.org/stable/c/f8d5e7846025f4ab15a461235f8ebae9094a361a"], "threat_severity": "Important"}