cbcvebase.
CVE-2024-56663
published 2024-12-27

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…

PriorityP429high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.23%
13.7th percentile
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: __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 validatio

Affected

20 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
debianlinux-6.1< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux>= 5.19.2 < 5.205.20
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 29e640ae641b9f5ffc666049426d2b16c98d996329e640ae641b9f5ffc666049426d2b16c98d9963
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < f3412522f78826fef1dfae40ef378a863df2591cf3412522f78826fef1dfae40ef378a863df2591c
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < f850d1d9f1106f528dfc5807565f2d1fa9a397d3f850d1d9f1106f528dfc5807565f2d1fa9a397d3
linuxlinux>= 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 < 2e3dbf938656986cce73ac4083500d0bcfbffe242e3dbf938656986cce73ac4083500d0bcfbffe24
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.123-16.1.123-1
linuxlinux_kernel>= 0 < 6.12.6-16.12.6-1
linuxlinux_kernel>= 0 < 6.12.6-16.12.6-1
linuxlinux_kernel>= 0 < 6.8.0-56.586.8.0-56.58
linuxlinux_kernel>= 5.19.2 < 5.205.20
linuxlinux_kernel>= 6.0 < 6.1.1216.1.121
linuxlinux_kernel>= 6.2 < 6.6.676.6.67
linuxlinux_kernel>= 6.7 < 6.12.66.12.6
msrcazl3_kernel_6.6.64.2-9_on_azure_linux_3.0
msrcazl3_kernel_6.6.76.1-1_on_azure_linux_3.0

CVSS provenance

nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.1HIGH
vendor_msrc7.1HIGH
vendor_redhat7.1HIGH
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