{"id":"DEBIAN-CVE-2025-21787","details":"In the Linux kernel, the following vulnerability has been resolved:  team: better TEAM_OPTION_TYPE_STRING validation  syzbot reported following splat [1]  Make sure user-provided data contains one nul byte.  [1]  BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline]  BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714   string_nocheck lib/vsprintf.c:633 [inline]   string+0x3ec/0x5f0 lib/vsprintf.c:714   vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843   __request_module+0x252/0x9f0 kernel/module/kmod.c:149   team_mode_get drivers/net/team/team_core.c:480 [inline]   team_change_mode drivers/net/team/team_core.c:607 [inline]   team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401   team_option_set drivers/net/team/team_core.c:375 [inline]   team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662   genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]   genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]   genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210   netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543   genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219   netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]   netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348   netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892   sock_sendmsg_nosec net/socket.c:718 [inline]   __sock_sendmsg+0x30f/0x380 net/socket.c:733   ____sys_sendmsg+0x877/0xb60 net/socket.c:2573   ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2627   __sys_sendmsg net/socket.c:2659 [inline]   __do_sys_sendmsg net/socket.c:2664 [inline]   __se_sys_sendmsg net/socket.c:2662 [inline]   __x64_sys_sendmsg+0x212/0x3c0 net/socket.c:2662   x64_sys_call+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:47   do_syscall_x64 arch/x86/entry/common.c:52 [inline]   do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83  entry_SYSCALL_64_after_hwframe+0x77/0x7f","modified":"2026-09-01T16:06:10.248184390Z","published":"2025-02-27T03:15:19.553Z","upstream":["CVE-2025-21787"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-21787"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.129-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21787.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.16-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21787.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.16-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21787.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}