CVE-2025-21787

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21787
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

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/4236bf4716589558cc0f3c3612642b2c2141b04e Mailing List Patch
https://git.kernel.org/stable/c/4512482e4805dd30bc77dec511f2a2edba5cb868 Mailing List Patch
https://git.kernel.org/stable/c/5bef3ac184b5626ea62385d6b82a1992b89d7940 Mailing List Patch
https://git.kernel.org/stable/c/7c30483d0f6bdb2230e10e3e4be5167927eac7a0
https://git.kernel.org/stable/c/7f5af50f3aa0af8cbef9fb76fffeed69e8143f59
https://git.kernel.org/stable/c/8401cade1918281177974b32c925afdce750d292 Mailing List Patch
https://git.kernel.org/stable/c/d071a91fa614ecdf760c29f61f6a7bfb7df796d6 Mailing List Patch
https://git.kernel.org/stable/c/f443687ad20c70320d1248f35f57bf46cac8df0a
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
History

13 Mar 2025, 13:15

Type Values Removed Values Added
CWE CWE-908
References
  • () https://git.kernel.org/stable/c/7c30483d0f6bdb2230e10e3e4be5167927eac7a0 -
  • () https://git.kernel.org/stable/c/7f5af50f3aa0af8cbef9fb76fffeed69e8143f59 -
  • () https://git.kernel.org/stable/c/f443687ad20c70320d1248f35f57bf46cac8df0a -
References () https://git.kernel.org/stable/c/4236bf4716589558cc0f3c3612642b2c2141b04e - () https://git.kernel.org/stable/c/4236bf4716589558cc0f3c3612642b2c2141b04e - Mailing List, Patch
References () https://git.kernel.org/stable/c/4512482e4805dd30bc77dec511f2a2edba5cb868 - () https://git.kernel.org/stable/c/4512482e4805dd30bc77dec511f2a2edba5cb868 - Mailing List, Patch
References () https://git.kernel.org/stable/c/5bef3ac184b5626ea62385d6b82a1992b89d7940 - () https://git.kernel.org/stable/c/5bef3ac184b5626ea62385d6b82a1992b89d7940 - Mailing List, Patch
References () https://git.kernel.org/stable/c/8401cade1918281177974b32c925afdce750d292 - () https://git.kernel.org/stable/c/8401cade1918281177974b32c925afdce750d292 - Mailing List, Patch
References () https://git.kernel.org/stable/c/d071a91fa614ecdf760c29f61f6a7bfb7df796d6 - () https://git.kernel.org/stable/c/d071a91fa614ecdf760c29f61f6a7bfb7df796d6 - Mailing List, Patch
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: equipo: mejor validación de TEAM_OPTION_TYPE_STRING syzbot informó lo siguiente: [1] Asegúrese de que los datos proporcionados por el usuario contengan un byte nulo. [1] ERROR: KMSAN: valor no inicializado en string_nocheck lib/vsprintf.c:633 [en línea] ERROR: KMSAN: valor no inicializado en 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

27 Feb 2025, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-27 03:15

Updated : 2025-03-13 13:15

NVD link : CVE-2025-21787

Mitre link : CVE-2025-21787

CVE.ORG link : CVE-2025-21787

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-908

Use of Uninitialized Resource