{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38209", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.994Z", "datePublished": "2025-07-04T13:37:28.853Z", "dateUpdated": "2025-07-04T13:37:28.853Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-04T13:37:28.853Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: remove tag set when second admin queue config fails\n\nCommit 104d0e2f6222 (\"nvme-fabrics: reset admin connection for secure\nconcatenation\") modified nvme_tcp_setup_ctrl() to call\nnvme_tcp_configure_admin_queue() twice. The first call prepares for\nDH-CHAP negotitation, and the second call is required for secure\nconcatenation. However, this change triggered BUG KASAN slab-use-after-\nfree in blk_mq_queue_tag_busy_iter(). This BUG can be recreated by\nrepeating the blktests test case nvme/063 a few times [1].\n\nWhen the BUG happens, nvme_tcp_create_ctrl() fails in the call chain\nbelow:\n\nnvme_tcp_create_ctrl()\n nvme_tcp_alloc_ctrl() new=true ... Alloc nvme_tcp_ctrl and admin_tag_set\n nvme_tcp_setup_ctrl() new=true\n nvme_tcp_configure_admin_queue() new=true ... Succeed\n nvme_alloc_admin_tag_set() ... Alloc the tag set for admin_tag_set\n nvme_stop_keep_alive()\n nvme_tcp_teardown_admin_queue() remove=false\n nvme_tcp_configure_admin_queue() new=false\n nvme_tcp_alloc_admin_queue() ... Fail, but do not call nvme_remove_admin_tag_set()\n nvme_uninit_ctrl()\n nvme_put_ctrl() ... Free up the nvme_tcp_ctrl and admin_tag_set\n\nThe first call of nvme_tcp_configure_admin_queue() succeeds with\nnew=true argument. The second call fails with new=false argument. This\nsecond call does not call nvme_remove_admin_tag_set() on failure, due to\nthe new=false argument. Then the admin tag set is not removed. However,\nnvme_tcp_create_ctrl() assumes that nvme_tcp_setup_ctrl() would call\nnvme_remove_admin_tag_set(). Then it frees up struct nvme_tcp_ctrl which\nhas admin_tag_set field. Later on, the timeout handler accesses the\nadmin_tag_set field and causes the BUG KASAN slab-use-after-free.\n\nTo not leave the admin tag set, call nvme_remove_admin_tag_set() when\nthe second nvme_tcp_configure_admin_queue() call fails. Do not return\nfrom nvme_tcp_setup_ctrl() on failure. Instead, jump to \"destroy_admin\"\ngo-to label to call nvme_tcp_teardown_admin_queue() which calls\nnvme_remove_admin_tag_set()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/host/tcp.c"], "versions": [{"version": "104d0e2f622233477ef7e57e59e8a4c3bb062c82", "lessThan": "db1da838b6012e4570c6f81e28ffe1d0ff595948", "status": "affected", "versionType": "git"}, {"version": "104d0e2f622233477ef7e57e59e8a4c3bb062c82", "lessThan": "e7143706702a209c814ed2c3fc6486c2a7decf6c", "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/nvme/host/tcp.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.4", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16-rc1", "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": "6.15", "versionEndExcluding": "6.15.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.16-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/db1da838b6012e4570c6f81e28ffe1d0ff595948"}, {"url": "https://git.kernel.org/stable/c/e7143706702a209c814ed2c3fc6486c2a7decf6c"}], "title": "nvme-tcp: remove tag set when second admin queue config fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: remove tag set when second admin queue config fails\n\nCommit 104d0e2f6222 (\"nvme-fabrics: reset admin connection for secure\nconcatenation\") modified nvme_tcp_setup_ctrl() to call\nnvme_tcp_configure_admin_queue() twice. The first call prepares for\nDH-CHAP negotitation, and the second call is required for secure\nconcatenation. However, this change triggered BUG KASAN slab-use-after-\nfree in blk_mq_queue_tag_busy_iter(). This BUG can be recreated by\nrepeating the blktests test case nvme/063 a few times [1].\n\nWhen the BUG happens, nvme_tcp_create_ctrl() fails in the call chain\nbelow:\n\nnvme_tcp_create_ctrl()\n nvme_tcp_alloc_ctrl() new=true ... Alloc nvme_tcp_ctrl and admin_tag_set\n nvme_tcp_setup_ctrl() new=true\n nvme_tcp_configure_admin_queue() new=true ... Succeed\n nvme_alloc_admin_tag_set() ... Alloc the tag set for admin_tag_set\n nvme_stop_keep_alive()\n nvme_tcp_teardown_admin_queue() remove=false\n nvme_tcp_configure_admin_queue() new=false\n nvme_tcp_alloc_admin_queue() ... Fail, but do not call nvme_remove_admin_tag_set()\n nvme_uninit_ctrl()\n nvme_put_ctrl() ... Free up the nvme_tcp_ctrl and admin_tag_set\n\nThe first call of nvme_tcp_configure_admin_queue() succeeds with\nnew=true argument. The second call fails with new=false argument. This\nsecond call does not call nvme_remove_admin_tag_set() on failure, due to\nthe new=false argument. Then the admin tag set is not removed. However,\nnvme_tcp_create_ctrl() assumes that nvme_tcp_setup_ctrl() would call\nnvme_remove_admin_tag_set(). Then it frees up struct nvme_tcp_ctrl which\nhas admin_tag_set field. Later on, the timeout handler accesses the\nadmin_tag_set field and causes the BUG KASAN slab-use-after-free.\n\nTo not leave the admin tag set, call nvme_remove_admin_tag_set() when\nthe second nvme_tcp_configure_admin_queue() call fails. Do not return\nfrom nvme_tcp_setup_ctrl() on failure. Instead, jump to \"destroy_admin\"\ngo-to label to call nvme_tcp_teardown_admin_queue() which calls\nnvme_remove_admin_tag_set()."}], "id": "CVE-2025-38209", "lastModified": "2025-07-04T14:15:29.080", "metrics": {}, "published": "2025-07-04T14:15:29.080", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/db1da838b6012e4570c6f81e28ffe1d0ff595948"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e7143706702a209c814ed2c3fc6486c2a7decf6c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: nvme-tcp: remove tag set when second admin queue config fails", "id": "2376399", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376399"}, "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:\nnvme-tcp: remove tag set when second admin queue config fails\nCommit 104d0e2f6222 (\"nvme-fabrics: reset admin connection for secure\nconcatenation\") modified nvme_tcp_setup_ctrl() to call\nnvme_tcp_configure_admin_queue() twice. The first call prepares for\nDH-CHAP negotitation, and the second call is required for secure\nconcatenation. However, this change triggered BUG KASAN slab-use-after-\nfree in blk_mq_queue_tag_busy_iter(). This BUG can be recreated by\nrepeating the blktests test case nvme/063 a few times [1].\nWhen the BUG happens, nvme_tcp_create_ctrl() fails in the call chain\nbelow:\nnvme_tcp_create_ctrl()\nnvme_tcp_alloc_ctrl() new=true ... Alloc nvme_tcp_ctrl and admin_tag_set\nnvme_tcp_setup_ctrl() new=true\nnvme_tcp_configure_admin_queue() new=true ... Succeed\nnvme_alloc_admin_tag_set() ... Alloc the tag set for admin_tag_set\nnvme_stop_keep_alive()\nnvme_tcp_teardown_admin_queue() remove=false\nnvme_tcp_configure_admin_queue() new=false\nnvme_tcp_alloc_admin_queue() ... Fail, but do not call nvme_remove_admin_tag_set()\nnvme_uninit_ctrl()\nnvme_put_ctrl() ... Free up the nvme_tcp_ctrl and admin_tag_set\nThe first call of nvme_tcp_configure_admin_queue() succeeds with\nnew=true argument. The second call fails with new=false argument. This\nsecond call does not call nvme_remove_admin_tag_set() on failure, due to\nthe new=false argument. Then the admin tag set is not removed. However,\nnvme_tcp_create_ctrl() assumes that nvme_tcp_setup_ctrl() would call\nnvme_remove_admin_tag_set(). Then it frees up struct nvme_tcp_ctrl which\nhas admin_tag_set field. Later on, the timeout handler accesses the\nadmin_tag_set field and causes the BUG KASAN slab-use-after-free.\nTo not leave the admin tag set, call nvme_remove_admin_tag_set() when\nthe second nvme_tcp_configure_admin_queue() call fails. Do not return\nfrom nvme_tcp_setup_ctrl() on failure. Instead, jump to \"destroy_admin\"\ngo-to label to call nvme_tcp_teardown_admin_queue() which calls\nnvme_remove_admin_tag_set()."], "name": "CVE-2025-38209", "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": "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": "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"}], "public_date": "2025-07-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38209\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38209\nhttps://lore.kernel.org/linux-cve-announce/2025070421-CVE-2025-38209-52b8@gregkh/T"], "threat_severity": "Moderate"}