cbcvebase.
CVE-2024-40961
published 2024-07-12

CVE-2024-40961: In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible NULL deref in fib6_nh_init() syzbot reminds us that in6_dev_get()…

PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.27%
18.7th percentile
In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible NULL deref in fib6_nh_init() syzbot reminds us that in6_dev_get() can return NULL. fib6_nh_init() ip6_validate_gw( &idev ) ip6_route_check_nh( idev ) *idev = in6_dev_get(dev); // can be NULL Oops: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 11237 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00249-gbe27b8965297 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:fib6_nh_init+0x640/0x2160 net/ipv6/route.c:3606 Code: 00 00 fc ff df 4c 8b 64 24 58 48 8b 44 24 28 4c 8b 74 24 30 48 89 c1 48 89 44 24 28 48 8d 98 e0 05 00 00 48 89 d8 48 c1 e8 03 0f b6 04 38 84 c0 0f 85 b3 17 00 00 8b 1b 31 ff 89 de e8 b8 8b RSP: 0018:ffffc900032775a0 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000000000 RDX: 0000000000000010 RSI: ffffc90003277a54 RDI: ffff88802b3a08d8 RBP: ffffc900032778b0 R08: 00000000000002fc R09: 0000000000000000 R10: 00000000000002fc R11: 0000000000000000 R12: ffff88802b3a08b8 R13: 1ffff9200064eec8 R14: ffffc90003277a00 R15: dffffc0000000000 FS: 00007f940feb06c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000245e8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_route_info_create+0x99e/0x12b0 net/ipv6/route.c:3809 ip6_route_add+0x28/0x160 net/ipv6/route.c:3853 ipv6_route_ioctl+0x588/0x870 net/ipv6/route.c:4483 inet6_ioctl+0x21a/0x280 net/ipv6/af_inet6.c:579 sock_do_ioctl+0x158/0x460 net/socket.c:1222 sock_ioctl+0x629/0x8e0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0

Affected

28 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
debianlinux-6.1< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
linuxlinux
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < 3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade3200ffeec4d59aad5bc9ca75d2c1fae47c0aeade
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < de5ad4d45cd0128a2a37555f48ab69aa19d78adcde5ad4d45cd0128a2a37555f48ab69aa19d78adc
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < 4cdfe813015d5a24586bd0a84fa0fa6eb0a1f6684cdfe813015d5a24586bd0a84fa0fa6eb0a1f668
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < 88b9a55e2e35ea846d41f4efdc29d23345bd1aa488b9a55e2e35ea846d41f4efdc29d23345bd1aa4
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < b6947723c9eabcab58cfb33cdb0a565a6aee6727b6947723c9eabcab58cfb33cdb0a565a6aee6727
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < ae8d3d39efe366c2198f530e01e4bf07830bf403ae8d3d39efe366c2198f530e01e4bf07830bf403
linuxlinux>= 428604fb118facce1309670779a35baf27ad044c < 2eab4543a2204092c3a7af81d7d6c506e59a03a62eab4543a2204092c3a7af81d7d6c506e59a03a6
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 6.1.99-16.1.99-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 5.4.0-195.2155.4.0-195.215
linuxlinux_kernel>= 0 < 5.15.0-121.1315.15.0-121.131
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 4.17 < 5.4.2795.4.279
linuxlinux_kernel>= 5.11 < 5.15.1625.15.162
linuxlinux_kernel>= 5.16 < 6.1.966.1.96
linuxlinux_kernel>= 5.5 < 5.10.2215.10.221
linuxlinux_kernel>= 6.2 < 6.6.366.6.36
linuxlinux_kernel>= 6.7 < 6.9.76.9.7
msrcazl3_kernel_6.6.35.1-5_on_azure_linux_3.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.