{"id":"DEBIAN-CVE-2024-44999","details":"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-\u003ehead 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","modified":"2026-10-01T11:02:12.220107677Z","published":"2024-09-04T20:15:08.590Z","upstream":["CVE-2024-44999"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-44999"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.112-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-44999.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-44999.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-44999.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"}]}