CVE-2024-56663

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: fix NL80211_ATTR_MLO_LINK_ID off-by-one Since the netlink attribute range validation provides inclusive checking, the *max* of attribute NL80211_ATTR_MLO_LINK_ID should be IEEE80211_MLD_MAX_NUM_LINKS - 1 otherwise causing an off-by-one. One crash stack for demonstration: ================================================================== BUG: KASAN: wild-memory-access in ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939 Read of size 6 at addr 001102080000000c by task fuzzer.386/9508 CPU: 1 PID: 9508 Comm: syz.1.386 Not tainted 6.1.70 #2 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106 print_report+0xe0/0x750 mm/kasan/report.c:398 kasan_report+0x139/0x170 mm/kasan/report.c:495 kasan_check_range+0x287/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939 rdev_tx_control_port net/wireless/rdev-ops.h:761 [inline] nl80211_tx_control_port+0x7b3/0xc40 net/wireless/nl80211.c:15453 genl_family_rcv_msg_doit+0x22e/0x320 net/netlink/genetlink.c:756 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0x539/0x740 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x74b/0x8c0 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x882/0xb90 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:716 [inline] __sock_sendmsg net/socket.c:728 [inline] ____sys_sendmsg+0x5cc/0x8f0 net/socket.c:2499 ___sys_sendmsg+0x21c/0x290 net/socket.c:2553 __sys_sendmsg net/socket.c:2582 [inline] __do_sys_sendmsg net/socket.c:2591 [inline] __se_sys_sendmsg+0x19e/0x270 net/socket.c:2589 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x90 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd Update the policy to ensure correct validation.
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:6.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*

History

06 Jan 2025, 18:52

Type Values Removed Values Added
CWE CWE-193
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/29e640ae641b9f5ffc666049426d2b16c98d9963 - () https://git.kernel.org/stable/c/29e640ae641b9f5ffc666049426d2b16c98d9963 - Patch
References () https://git.kernel.org/stable/c/2e3dbf938656986cce73ac4083500d0bcfbffe24 - () https://git.kernel.org/stable/c/2e3dbf938656986cce73ac4083500d0bcfbffe24 - Patch
References () https://git.kernel.org/stable/c/f3412522f78826fef1dfae40ef378a863df2591c - () https://git.kernel.org/stable/c/f3412522f78826fef1dfae40ef378a863df2591c - Patch
References () https://git.kernel.org/stable/c/f850d1d9f1106f528dfc5807565f2d1fa9a397d3 - () https://git.kernel.org/stable/c/f850d1d9f1106f528dfc5807565f2d1fa9a397d3 - Patch
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.1
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: nl80211: corrección del error NL80211_ATTR_MLO_LINK_ID en uno Dado que la validación del rango del atributo netlink proporciona una verificación inclusiva, el *máximo* del atributo NL80211_ATTR_MLO_LINK_ID debe ser IEEE80211_MLD_MAX_NUM_LINKS - 1, lo que de lo contrario provocaría un error de uno. Una pila de fallos para demostración: ==================================================================== ERROR: KASAN: acceso a memoria salvaje en ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939 Lectura de tamaño 6 en la dirección 001102080000000c por la tarea fuzzer.386/9508 CPU: 1 PID: 9508 Comm: syz.1.386 No contaminado 6.1.70 #2 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0x177/0x231 lib/dump_stack.c:106 print_report+0xe0/0x750 mm/kasan/report.c:398 kasan_report+0x139/0x170 mm/kasan/report.c:495 kasan_check_range+0x287/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ieee80211_tx_control_port+0x3b6/0xca0 net/mac80211/tx.c:5939 rdev_tx_control_port net/wireless/rdev-ops.h:761 [en línea] nl80211_tx_control_port+0x7b3/0xc40 net/wireless/nl80211.c:15453 genl_family_rcv_msg_doit+0x22e/0x320 net/netlink/genetlink.c:756 genl_family_rcv_msg net/netlink/genetlink.c:833 [en línea] genl_rcv_msg+0x539/0x740 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1de/0x420 net/netlink/af_netlink.c:2508 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [en línea] netlink_unicast+0x74b/0x8c0 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x882/0xb90 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:716 [en línea] __sock_sendmsg net/socket.c:728 [en línea] ____sys_sendmsg+0x5cc/0x8f0 net/socket.c:2499 ___sys_sendmsg+0x21c/0x290 net/socket.c:2553 __sys_sendmsg net/socket.c:2582 [en línea] __do_sys_sendmsg net/socket.c:2591 [en línea] __se_sys_sendmsg+0x19e/0x270 net/socket.c:2589 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x90 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd Actualice la política para garantizar una validación correcta.

27 Dec 2024, 15:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-12-27 15:15

Updated : 2025-01-06 18:52


NVD link : CVE-2024-56663

Mitre link : CVE-2024-56663

CVE.ORG link : CVE-2024-56663


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-193

Off-by-one Error