CVE-2024-44999

HIGH EPSS 17.2%
Published Sep 4, 20241y ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Sep 4, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: gtp: pull network headers in gtp_dev_xmit() syzbot/KMSAN reported use of uninit-value in get_dev_xmit() [1] We must make sure the IPv4 or Ipv6 header is pulled in skb->head before accessing fields in them. Use pskb_inet_may_pull() to fix this issue. [1] BUG: KMSAN: uninit-value in ipv6_pdp_find drivers/net/gtp.c:220 [inline] BUG: KMSAN: uninit-value in gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline] BUG: KMSAN: uninit-value in gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281 ipv6_pdp_find drivers/net/gtp.c:220 [inline] gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline] gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281 __netdev_start_xmit include/linux/netdevice.h:4913 [inline] netdev_start_xmit include/linux/netdevice.h:4922 [inline] xmit_one net/core/dev.c:3580 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3596 __dev_queue_xmit+0x358c/0x5610 net/core/dev.c:4423 dev_queue_xmit include/linux/netdevice.h:3105 [inline] packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3145 [inline] packet_sendmsg+0x90e3/0xa3a0 net/packet/af_packet.c:3177 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212 x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45 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 Uninit was created at: slab_post_alloc_hook mm/slub.c:3994 [inline] slab_alloc_node mm/slub.c:4037 [inline] kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4080 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:583 __alloc_skb+0x363/0x7b0 net/core/skbuff.c:674 alloc_skb include/linux/skbuff.h:1320 [inline] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6526 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2815 packet_alloc_skb net/packet/af_packet.c:2994 [inline] packet_snd net/packet/af_packet.c:3088 [inline] packet_sendmsg+0x749c/0xa3a0 net/packet/af_packet.c:3177 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212 x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45 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 CPU: 0 UID: 0 PID: 7115 Comm: syz.1.515 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
17.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-908

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥4.7  –  <4.19.321
linuxlinux_kernel*≥4.20  –  <5.4.283
linuxlinux_kernel*≥5.5  –  <5.10.225
linuxlinux_kernel*≥5.11  –  <5.15.166
linuxlinux_kernel*≥5.16  –  <6.1.107
linuxlinux_kernel*≥6.2  –  <6.6.48
linuxlinux_kernel*≥6.7  –  <6.10.7
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/137d565ab89ce3584503b443bc9e00d44f482593
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1f6b62392453d8f36685d19b761307a8c5617ac1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/34ba4f29f3d9eb52dee37512059efb2afd7e966f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3939d787139e359b77aaf9485d1e145d6713d7b9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3a3be7ff9224f424e485287b54be00d2c6bd9c40
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cbb9a969fc190e85195d1b0f08038e7f6199044e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f5dda8db382c5751c4e572afc7c99df7da1f83ca
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/137d565ab89ce3584503b443bc9e00d44f482593
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1f6b62392453d8f36685d19b761307a8c5617ac1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/34ba4f29f3d9eb52dee37512059efb2afd7e966f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3939d787139e359b77aaf9485d1e145d6713d7b9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3a3be7ff9224f424e485287b54be00d2c6bd9c40
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cbb9a969fc190e85195d1b0f08038e7f6199044e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f5dda8db382c5751c4e572afc7c99df7da1f83ca
    Patch