{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-44999", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngtp: pull network headers in gtp_dev_xmit()\n\nsyzbot/KMSAN reported use of uninit-value in get_dev_xmit() [1]\n\nWe must make sure the IPv4 or Ipv6 header is pulled in skb->head\nbefore accessing fields in them.\n\nUse pskb_inet_may_pull() to fix this issue.\n\n[1]\nBUG: KMSAN: uninit-value in ipv6_pdp_find drivers/net/gtp.c:220 [inline]\n BUG: KMSAN: uninit-value in gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline]\n BUG: KMSAN: uninit-value in gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281\n ipv6_pdp_find drivers/net/gtp.c:220 [inline]\n gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline]\n gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281\n __netdev_start_xmit include/linux/netdevice.h:4913 [inline]\n netdev_start_xmit include/linux/netdevice.h:4922 [inline]\n xmit_one net/core/dev.c:3580 [inline]\n dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3596\n __dev_queue_xmit+0x358c/0x5610 net/core/dev.c:4423\n dev_queue_xmit include/linux/netdevice.h:3105 [inline]\n packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3145 [inline]\n packet_sendmsg+0x90e3/0xa3a0 net/packet/af_packet.c:3177\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n __sys_sendto+0x685/0x830 net/socket.c:2204\n __do_sys_sendto net/socket.c:2216 [inline]\n __se_sys_sendto net/socket.c:2212 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212\n x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3994 [inline]\n slab_alloc_node mm/slub.c:4037 [inline]\n kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4080\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:583\n __alloc_skb+0x363/0x7b0 net/core/skbuff.c:674\n alloc_skb include/linux/skbuff.h:1320 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6526\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2815\n packet_alloc_skb net/packet/af_packet.c:2994 [inline]\n packet_snd net/packet/af_packet.c:3088 [inline]\n packet_sendmsg+0x749c/0xa3a0 net/packet/af_packet.c:3177\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n __sys_sendto+0x685/0x830 net/socket.c:2204\n __do_sys_sendto net/socket.c:2216 [inline]\n __se_sys_sendto net/socket.c:2212 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212\n x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nCPU: 0 UID: 0 PID: 7115 Comm: syz.1.515 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "459aa660eb1d", "version_value": "3d89d0c4a1c6" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "4.7", "status": "affected" }, { "version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.321", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.283", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.225", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.166", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.107", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.48", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10.7", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3" }, { "url": "https://git.kernel.org/stable/c/f5dda8db382c5751c4e572afc7c99df7da1f83ca", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/f5dda8db382c5751c4e572afc7c99df7da1f83ca" }, { "url": "https://git.kernel.org/stable/c/cbb9a969fc190e85195d1b0f08038e7f6199044e", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/cbb9a969fc190e85195d1b0f08038e7f6199044e" }, { "url": "https://git.kernel.org/stable/c/1f6b62392453d8f36685d19b761307a8c5617ac1", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/1f6b62392453d8f36685d19b761307a8c5617ac1" }, { "url": "https://git.kernel.org/stable/c/137d565ab89ce3584503b443bc9e00d44f482593", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/137d565ab89ce3584503b443bc9e00d44f482593" }, { "url": "https://git.kernel.org/stable/c/34ba4f29f3d9eb52dee37512059efb2afd7e966f", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/34ba4f29f3d9eb52dee37512059efb2afd7e966f" }, { "url": "https://git.kernel.org/stable/c/3939d787139e359b77aaf9485d1e145d6713d7b9", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/3939d787139e359b77aaf9485d1e145d6713d7b9" }, { "url": "https://git.kernel.org/stable/c/3a3be7ff9224f424e485287b54be00d2c6bd9c40", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/3a3be7ff9224f424e485287b54be00d2c6bd9c40" } ] }, "generator": { "engine": "bippy-c9c4e1df01b2" } }