{"id":"CVE-2025-21787","revision":"1e3679491d554caabf62ab4496039963","records":[{"revision":"1e3679491d554caabf62ab4496039963","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-21787","aliases":[],"title":"team: better TEAM_OPTION_TYPE_STRING validation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nteam: better TEAM_OPTION_TYPE_STRING validation\n\nsyzbot reported following splat [1]\n\nMake sure user-provided data contains one nul byte.\n\n[1]\n BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline]\n BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714\n  string_nocheck lib/vsprintf.c:633 [inline]\n  string+0x3ec/0x5f0 lib/vsprintf.c:714\n  vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843\n  __request_module+0x252/0x9f0 kernel/module/kmod.c:149\n  team_mode_get drivers/net/team/team_core.c:480 [inline]\n  team_change_mode drivers/net/team/team_core.c:607 [inline]\n  team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401\n  team_option_set drivers/net/team/team_core.c:375 [inline]\n  team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662\n  genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]\n  genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n  genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210\n  netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543\n  genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219\n  netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]\n  netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348\n  netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892\n  sock_sendmsg_nosec net/socket.c:718 [inline]\n  __sock_sendmsg+0x30f/0x380 net/socket.c:733\n  ____sys_sendmsg+0x877/0xb60 net/socket.c:2573\n  ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2627\n  __sys_sendmsg net/socket.c:2659 [inline]\n  __do_sys_sendmsg net/socket.c:2664 [inline]\n  __se_sys_sendmsg net/socket.c:2662 [inline]\n  __x64_sys_sendmsg+0x212/0x3c0 net/socket.c:2662\n  x64_sys_call+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:47\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f","state":0,"publishedAt":"2025-02-27T02:18:26.875+00:00","modifiedAt":"2026-10-15T01:04:23.334+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                        \"drivers/net/team/team_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"7c30483d0f6bdb2230e10e3e4be5167927eac7a0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"7f5af50f3aa0af8cbef9fb76fffeed69e8143f59\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"f443687ad20c70320d1248f35f57bf46cac8df0a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"4512482e4805dd30bc77dec511f2a2edba5cb868\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"d071a91fa614ecdf760c29f61f6a7bfb7df796d6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"4236bf4716589558cc0f3c3612642b2c2141b04e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"8401cade1918281177974b32c925afdce750d292\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"3d249d4ca7d0ed6629a135ea1ea21c72286c0d80\",\n                            \"lessThan\": \"5bef3ac184b5626ea62385d6b82a1992b89d7940\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\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                        \"drivers/net/team/team_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.291\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.235\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.179\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.129\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.79\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.16\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13.4\",\n                            \"lessThanOrEqual\": \"6.13.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/7c30483d0f6bdb2230e10e3e4be5167927eac7a0","https://git.kernel.org/stable/c/7f5af50f3aa0af8cbef9fb76fffeed69e8143f59","https://git.kernel.org/stable/c/f443687ad20c70320d1248f35f57bf46cac8df0a","https://git.kernel.org/stable/c/4512482e4805dd30bc77dec511f2a2edba5cb868","https://git.kernel.org/stable/c/d071a91fa614ecdf760c29f61f6a7bfb7df796d6","https://git.kernel.org/stable/c/4236bf4716589558cc0f3c3612642b2c2141b04e","https://git.kernel.org/stable/c/8401cade1918281177974b32c925afdce750d292","https://git.kernel.org/stable/c/5bef3ac184b5626ea62385d6b82a1992b89d7940"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-21787","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-21787","identifiers":["CVE-2025-21787"]},"retained":false,"historicalAffected":[]}],"coverage":[]}