CVE-2026-90175

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90175", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.791Z", "datePublished": "2026-09-17T16:07:01.769Z", "dateUpdated": "2026-10-19T08:59:12.437Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:59:12.437Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer\n\nFree it unconditionally after ksmbd_alloc_user() calls.\n\nkmemleak splat:\n unreferenced object 0xffff888103b83540 (size 192):\n comm \"pool-0\", pid 16970, jiffies 4377290937\n hex dump (first 32 bytes):\n 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc 408ccc66):\n __kvmalloc_node_noprof+0x730/0x920\n handle_generic_event+0xec/0x1a0 [ksmbd]\n genl_family_rcv_msg_doit+0xe0/0x130\n genl_rcv_msg+0x181/0x290\n netlink_rcv_skb+0x4f/0x100\n genl_rcv+0x28/0x40\n netlink_unicast+0x1e6/0x2c0\n netlink_sendmsg+0x20a/0x450\n ____sys_sendmsg+0x2e8/0x310\n ___sys_sendmsg+0x78/0xc0\n __sys_sendmsg+0x63/0xc0\n do_syscall_64+0xa1/0x670\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/server/auth.c", "fs/smb/server/mgmt/user_config.c"], "versions": [{"version": "8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320", "lessThan": "4d6fe49fa3e7fbd779c761518e6572e340233c9b", "status": "affected", "versionType": "git"}, {"version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "lessThan": "c9f2872e91b9fe99c1d0ba768906f7aeb48c8517", "status": "affected", "versionType": "git"}, {"version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "lessThan": "7a98c3b903b10c4d6176948254012b5ca24b071b", "status": "affected", "versionType": "git"}, {"version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "lessThan": "abb5146b2d8197d695ea9eaa0847c73e34f00985", "status": "affected", "versionType": "git"}, {"version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "lessThan": "1c3ebf832d010c08afe1359215d4121cb1ed2de5", "status": "affected", "versionType": "git"}, {"version": "6.6.141", "lessThan": "6.6.157", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/server/auth.c", "fs/smb/server/mgmt/user_config.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "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": "6.6.141", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b"}, {"url": "https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517"}, {"url": "https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b"}, {"url": "https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985"}, {"url": "https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5"}], "title": "smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/smb/server/auth.c", "fs/smb/server/mgmt/user_config.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "4d6fe49fa3e7fbd779c761518e6572e340233c9b", "status": "affected", "version": "8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320", "versionType": "git"}, {"lessThan": "c9f2872e91b9fe99c1d0ba768906f7aeb48c8517", "status": "affected", "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "versionType": "git"}, {"lessThan": "7a98c3b903b10c4d6176948254012b5ca24b071b", "status": "affected", "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "versionType": "git"}, {"lessThan": "abb5146b2d8197d695ea9eaa0847c73e34f00985", "status": "affected", "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "versionType": "git"}, {"lessThan": "1c3ebf832d010c08afe1359215d4121cb1ed2de5", "status": "affected", "version": "a77e0e02af1c2db5fc040511aa78a58a52e116ab", "versionType": "git"}, {"lessThan": "6.6.157", "status": "affected", "version": "6.6.141", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/smb/server/auth.c", "fs/smb/server/mgmt/user_config.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"lessThan": "6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "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\nsmb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer\n\nFree it unconditionally after ksmbd_alloc_user() calls.\n\nkmemleak splat:\n unreferenced object 0xffff888103b83540 (size 192):\n comm \"pool-0\", pid 16970, jiffies 4377290937\n hex dump (first 32 bytes):\n 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc 408ccc66):\n __kvmalloc_node_noprof+0x730/0x920\n handle_generic_event+0xec/0x1a0 [ksmbd]\n genl_family_rcv_msg_doit+0xe0/0x130\n genl_rcv_msg+0x181/0x290\n netlink_rcv_skb+0x4f/0x100\n genl_rcv+0x28/0x40\n netlink_unicast+0x1e6/0x2c0\n netlink_sendmsg+0x20a/0x450\n ____sys_sendmsg+0x2e8/0x310\n ___sys_sendmsg+0x78/0xc0\n __sys_sendmsg+0x63/0xc0\n do_syscall_64+0xa1/0x670\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"}], "id": "CVE-2026-90175", "lastModified": "2026-10-19T09:19:07.477", "metrics": {}, "published": "2026-09-17T17:17:11.227", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320,4d6fe49fa3e7fbd779c761518e6572e340233c9b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a77e0e02af1c2db5fc040511aa78a58a52e116ab,c9f2872e91b9fe99c1d0ba768906f7aeb48c8517)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a77e0e02af1c2db5fc040511aa78a58a52e116ab,7a98c3b903b10c4d6176948254012b5ca24b071b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a77e0e02af1c2db5fc040511aa78a58a52e116ab,abb5146b2d8197d695ea9eaa0847c73e34f00985)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a77e0e02af1c2db5fc040511aa78a58a52e116ab,1c3ebf832d010c08afe1359215d4121cb1ed2de5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.141,6.6.157)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T18:30:11.915053+00:00", "updated": "2026-09-20T02:45:18.438850+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-200"]}