{"id":"CVE-2026-90175","revision":"8e5c6eaf57fd485da1f291ddf1edd125","records":[{"revision":"8e5c6eaf57fd485da1f291ddf1edd125","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90175","aliases":[],"title":"smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer","description":"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","state":0,"publishedAt":"2026-09-17T16:07:01.769+00:00","modifiedAt":"2026-10-19T08:59:12.437+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/smb/server/auth.c\",\n                        \"fs/smb/server/mgmt/user_config.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320\",\n                            \"lessThan\": \"4d6fe49fa3e7fbd779c761518e6572e340233c9b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a77e0e02af1c2db5fc040511aa78a58a52e116ab\",\n                            \"lessThan\": \"c9f2872e91b9fe99c1d0ba768906f7aeb48c8517\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a77e0e02af1c2db5fc040511aa78a58a52e116ab\",\n                            \"lessThan\": \"7a98c3b903b10c4d6176948254012b5ca24b071b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a77e0e02af1c2db5fc040511aa78a58a52e116ab\",\n                            \"lessThan\": \"abb5146b2d8197d695ea9eaa0847c73e34f00985\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a77e0e02af1c2db5fc040511aa78a58a52e116ab\",\n                            \"lessThan\": \"1c3ebf832d010c08afe1359215d4121cb1ed2de5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.6.141\",\n                            \"lessThan\": \"6.6.157\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/smb/server/auth.c\",\n                        \"fs/smb/server/mgmt/user_config.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b","https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517","https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b","https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985","https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90175","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90175","identifiers":["CVE-2026-90175"]},"retained":false,"historicalAffected":[]}],"coverage":[]}