{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-35973", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-17T13:50:33.142Z", "datePublished": "2024-05-20T09:42:00.475Z", "dateUpdated": "2024-11-05T09:26:01.927Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:26:01.927Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngeneve: fix header validation in geneve[6]_xmit_skb\n\nsyzbot is able to trigger an uninit-value in geneve_xmit() [1]\n\nProblem : While most ip tunnel helpers (like ip_tunnel_get_dsfield())\nuses skb_protocol(skb, true), pskb_inet_may_pull() is only using\nskb->protocol.\n\nIf anything else than ETH_P_IPV6 or ETH_P_IP is found in skb->protocol,\npskb_inet_may_pull() does nothing at all.\n\nIf a vlan tag was provided by the caller (af_packet in the syzbot case),\nthe network header might not point to the correct location, and skb\nlinear part could be smaller than expected.\n\nAdd skb_vlan_inet_prepare() to perform a complete mac validation.\n\nUse this in geneve for the moment, I suspect we need to adopt this\nmore broadly.\n\nv4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest\n - Only call __vlan_get_protocol() for vlan types.\n\nv2,v3 - Addressed Sabrina comments on v1 and v2\n\n[1]\n\nBUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n __netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n netdev_start_xmit include/linux/netdevice.h:4917 [inline]\n xmit_one net/core/dev.c:3531 [inline]\n dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547\n __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335\n dev_queue_xmit include/linux/netdevice.h:3091 [inline]\n packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3081 [inline]\n packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113\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:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n packet_alloc_skb net/packet/af_packet.c:2930 [inline]\n packet_snd net/packet/af_packet.c:3024 [inline]\n packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113\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:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/geneve.c", "include/net/ip_tunnels.h"], "versions": [{"version": "35385daa8db3", "lessThan": "43be590456e1", "status": "affected", "versionType": "git"}, {"version": "6f92124d7441", "lessThan": "d3adf11d7993", "status": "affected", "versionType": "git"}, {"version": "71ad9260c001", "lessThan": "10204df9beda", "status": "affected", "versionType": "git"}, {"version": "d13f048dd40e", "lessThan": "3c1ae6de74e3", "status": "affected", "versionType": "git"}, {"version": "d13f048dd40e", "lessThan": "4a1b65d1e55d", "status": "affected", "versionType": "git"}, {"version": "d13f048dd40e", "lessThan": "190d9efa5773", "status": "affected", "versionType": "git"}, {"version": "d13f048dd40e", "lessThan": "357163fff3a6", "status": "affected", "versionType": "git"}, {"version": "d13f048dd40e", "lessThan": "d8a6213d70ac", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/geneve.c", "include/net/ip_tunnels.h"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.313", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.275", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.216", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.156", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.87", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.28", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.7", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/43be590456e1f3566054ce78ae2dbb68cbe1a536"}, {"url": "https://git.kernel.org/stable/c/d3adf11d7993518a39bd02b383cfe657ccc0023c"}, {"url": "https://git.kernel.org/stable/c/10204df9beda4978bd1d0c2db0d8375bfb03b915"}, {"url": "https://git.kernel.org/stable/c/3c1ae6de74e3d2d6333d29a2d3e13e6094596c79"}, {"url": "https://git.kernel.org/stable/c/4a1b65d1e55d53b397cb27014208be1e04172670"}, {"url": "https://git.kernel.org/stable/c/190d9efa5773f26d6f334b1b8be282c4fa13fd5e"}, {"url": "https://git.kernel.org/stable/c/357163fff3a6e48fe74745425a32071ec9caf852"}, {"url": "https://git.kernel.org/stable/c/d8a6213d70accb403b82924a1c229e733433a5ef"}], "title": "geneve: fix header validation in geneve[6]_xmit_skb", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-noinfo Not enough information"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2024-05-29T18:16:33.435108Z", "id": "CVE-2024-35973", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-29T19:56:09.359Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:21:49.047Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/43be590456e1f3566054ce78ae2dbb68cbe1a536", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d3adf11d7993518a39bd02b383cfe657ccc0023c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/10204df9beda4978bd1d0c2db0d8375bfb03b915", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3c1ae6de74e3d2d6333d29a2d3e13e6094596c79", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4a1b65d1e55d53b397cb27014208be1e04172670", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/190d9efa5773f26d6f334b1b8be282c4fa13fd5e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/357163fff3a6e48fe74745425a32071ec9caf852", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d8a6213d70accb403b82924a1c229e733433a5ef", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": ["x_transferred"]}]}]}, "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/43be590456e1f3566054ce78ae2dbb68cbe1a536", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d3adf11d7993518a39bd02b383cfe657ccc0023c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/10204df9beda4978bd1d0c2db0d8375bfb03b915", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/3c1ae6de74e3d2d6333d29a2d3e13e6094596c79", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4a1b65d1e55d53b397cb27014208be1e04172670", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/190d9efa5773f26d6f334b1b8be282c4fa13fd5e", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/357163fff3a6e48fe74745425a32071ec9caf852", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d8a6213d70accb403b82924a1c229e733433a5ef", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:21:49.047Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-35973", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-29T18:16:33.435108Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-29T18:16:37.751Z"}}], "cna": {"title": "geneve: fix header validation in geneve[6]_xmit_skb", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "35385daa8db3", "lessThan": "43be590456e1", "versionType": "git"}, {"status": "affected", "version": "6f92124d7441", "lessThan": "d3adf11d7993", "versionType": "git"}, {"status": "affected", "version": "71ad9260c001", "lessThan": "10204df9beda", "versionType": "git"}, {"status": "affected", "version": "d13f048dd40e", "lessThan": "3c1ae6de74e3", "versionType": "git"}, {"status": "affected", "version": "d13f048dd40e", "lessThan": "4a1b65d1e55d", "versionType": "git"}, {"status": "affected", "version": "d13f048dd40e", "lessThan": "190d9efa5773", "versionType": "git"}, {"status": "affected", "version": "d13f048dd40e", "lessThan": "357163fff3a6", "versionType": "git"}, {"status": "affected", "version": "d13f048dd40e", "lessThan": "d8a6213d70ac", "versionType": "git"}], "programFiles": ["drivers/net/geneve.c", "include/net/ip_tunnels.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.13"}, {"status": "unaffected", "version": "0", "lessThan": "5.13", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.313", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.275", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.216", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.156", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.87", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.28", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.7", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/geneve.c", "include/net/ip_tunnels.h"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/43be590456e1f3566054ce78ae2dbb68cbe1a536"}, {"url": "https://git.kernel.org/stable/c/d3adf11d7993518a39bd02b383cfe657ccc0023c"}, {"url": "https://git.kernel.org/stable/c/10204df9beda4978bd1d0c2db0d8375bfb03b915"}, {"url": "https://git.kernel.org/stable/c/3c1ae6de74e3d2d6333d29a2d3e13e6094596c79"}, {"url": "https://git.kernel.org/stable/c/4a1b65d1e55d53b397cb27014208be1e04172670"}, {"url": "https://git.kernel.org/stable/c/190d9efa5773f26d6f334b1b8be282c4fa13fd5e"}, {"url": "https://git.kernel.org/stable/c/357163fff3a6e48fe74745425a32071ec9caf852"}, {"url": "https://git.kernel.org/stable/c/d8a6213d70accb403b82924a1c229e733433a5ef"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngeneve: fix header validation in geneve[6]_xmit_skb\n\nsyzbot is able to trigger an uninit-value in geneve_xmit() [1]\n\nProblem : While most ip tunnel helpers (like ip_tunnel_get_dsfield())\nuses skb_protocol(skb, true), pskb_inet_may_pull() is only using\nskb->protocol.\n\nIf anything else than ETH_P_IPV6 or ETH_P_IP is found in skb->protocol,\npskb_inet_may_pull() does nothing at all.\n\nIf a vlan tag was provided by the caller (af_packet in the syzbot case),\nthe network header might not point to the correct location, and skb\nlinear part could be smaller than expected.\n\nAdd skb_vlan_inet_prepare() to perform a complete mac validation.\n\nUse this in geneve for the moment, I suspect we need to adopt this\nmore broadly.\n\nv4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest\n - Only call __vlan_get_protocol() for vlan types.\n\nv2,v3 - Addressed Sabrina comments on v1 and v2\n\n[1]\n\nBUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n __netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n netdev_start_xmit include/linux/netdevice.h:4917 [inline]\n xmit_one net/core/dev.c:3531 [inline]\n dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547\n __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335\n dev_queue_xmit include/linux/netdevice.h:3091 [inline]\n packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3081 [inline]\n packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113\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:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n packet_alloc_skb net/packet/af_packet.c:2930 [inline]\n packet_snd net/packet/af_packet.c:3024 [inline]\n packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113\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:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:26:01.927Z"}}}, "cveMetadata": {"cveId": "CVE-2024-35973", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:26:01.927Z", "dateReserved": "2024-05-17T13:50:33.142Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-20T09:42:00.475Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngeneve: fix header validation in geneve[6]_xmit_skb\n\nsyzbot is able to trigger an uninit-value in geneve_xmit() [1]\n\nProblem : While most ip tunnel helpers (like ip_tunnel_get_dsfield())\nuses skb_protocol(skb, true), pskb_inet_may_pull() is only using\nskb->protocol.\n\nIf anything else than ETH_P_IPV6 or ETH_P_IP is found in skb->protocol,\npskb_inet_may_pull() does nothing at all.\n\nIf a vlan tag was provided by the caller (af_packet in the syzbot case),\nthe network header might not point to the correct location, and skb\nlinear part could be smaller than expected.\n\nAdd skb_vlan_inet_prepare() to perform a complete mac validation.\n\nUse this in geneve for the moment, I suspect we need to adopt this\nmore broadly.\n\nv4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest\n - Only call __vlan_get_protocol() for vlan types.\n\nv2,v3 - Addressed Sabrina comments on v1 and v2\n\n[1]\n\nBUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n BUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n geneve_xmit_skb drivers/net/geneve.c:910 [inline]\n geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n __netdev_start_xmit include/linux/netdevice.h:4903 [inline]\n netdev_start_xmit include/linux/netdevice.h:4917 [inline]\n xmit_one net/core/dev.c:3531 [inline]\n dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547\n __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335\n dev_queue_xmit include/linux/netdevice.h:3091 [inline]\n packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3081 [inline]\n packet_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113\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:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nUninit was created at:\n slab_post_alloc_hook mm/slub.c:3804 [inline]\n slab_alloc_node mm/slub.c:3845 [inline]\n kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\n alloc_skb include/linux/skbuff.h:1318 [inline]\n alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\n sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\n packet_alloc_skb net/packet/af_packet.c:2930 [inline]\n packet_snd net/packet/af_packet.c:3024 [inline]\n packet_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113\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:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: geneve: corrige la validaci\u00f3n del encabezado en geneve[6]_xmit_skb syzbot puede activar un valor uninit en geneve_xmit() [1] Problema: mientras que la mayor\u00eda de los asistentes de t\u00fanel IP (como ip_tunnel_get_dsfield( )) usa skb_protocol(skb, true), pskb_inet_may_pull() solo usa skb->protocol. Si se encuentra algo m\u00e1s que ETH_P_IPV6 o ETH_P_IP en skb->protocol, pskb_inet_may_pull() no hace nada en absoluto. Si la persona que llama proporcion\u00f3 una etiqueta vlan (af_packet en el caso de syzbot), es posible que el encabezado de la red no apunte a la ubicaci\u00f3n correcta y que la parte lineal de skb sea m\u00e1s peque\u00f1a de lo esperado. Agregue skb_vlan_inet_prepare() para realizar una validaci\u00f3n completa de Mac. Utilice esto en Ginebra por el momento. Sospecho que debemos adoptarlo de manera m\u00e1s amplia. v4: Jakub inform\u00f3 que v3 rompi\u00f3 la autoprueba de l2_tos_ttl_inherit.sh: solo llame a __vlan_get_protocol() para tipos de VLAN. v2,v3: se abordaron los comentarios de Sabrina sobre v1 y v2 [1] ERROR: KMSAN: valor uninit en geneve_xmit_skb drivers/net/geneve.c:910 [en l\u00ednea] ERROR: KMSAN: valor uninit en geneve_xmit+0x302d/0x5420 drivers/ net/geneve.c:1030 geneve_xmit_skb drivers/net/geneve.c:910 [en l\u00ednea] geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030 __netdev_start_xmit include/linux/netdevice.h:4903 [en l\u00ednea] netdev_start_xmit include/ linux/netdevice.h:4917 [en l\u00ednea] xmit_one net/core/dev.c:3531 [en l\u00ednea] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x348d/0x52c0 net/core/dev.c: 4335 dev_queue_xmit include/linux/netdevice.h:3091 [en l\u00ednea] paquete_xmit+0x9c/0x6c0 net/packet/af_packet.c:276 paquete_snd net/packet/af_packet.c:3081 [en l\u00ednea] packet_sendmsg+0x8bb0/0x9ef0 net/packet/ af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [en l\u00ednea ] __se_sys_sendto net/socket.c:2199 [en l\u00ednea] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2199 do_syscall_64+0xd5/0x1f0 Entry_SYSCALL_64_after_hwframe+0x6d/0x75 Uninit se cre\u00f3 en slab_post_alloc _hook mm/slub.c:3804 [en l\u00ednea] slab_alloc_node mm/slub.c:3845 [en l\u00ednea] kmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c: 668 alloc_skb include/linux/skbuff.h:1318 [en l\u00ednea] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795 paquete_alloc_skb net/packet/af_packet.c :2930 [en l\u00ednea] paquete_snd net/packet/af_packet.c:3024 [en l\u00ednea] paquete_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x30f/0x380 net/ Socket.c: 745 __sys_sendto+0x685/0x830 net/Socket.c: 2191 __do_sys_sendto net/Socket.c: 2203 [en l\u00ednea] __se_sys_sendto net/Socket.c: 2199 [Inline] __X64_SYS_SENDTO+0x125/0x1d0 net/Socket/Socket. 2199 do_syscall_64+0xd5/0x1f0 Entry_SYSCALL_64_after_hwframe+0x6d/0x75 CPU: 0 PID: 5033 Comm: syz-executor346 No contaminado 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0 Nombre de hardware: Google Google Compute Engine/Google Motor de c\u00f3mputo, BIOS Google 29/02/2024"}], "id": "CVE-2024-35973", "lastModified": "2024-11-05T10:16:58.983", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-05-20T10:15:12.077", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/10204df9beda4978bd1d0c2db0d8375bfb03b915"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/190d9efa5773f26d6f334b1b8be282c4fa13fd5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/357163fff3a6e48fe74745425a32071ec9caf852"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c1ae6de74e3d2d6333d29a2d3e13e6094596c79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/43be590456e1f3566054ce78ae2dbb68cbe1a536"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a1b65d1e55d53b397cb27014208be1e04172670"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d3adf11d7993518a39bd02b383cfe657ccc0023c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d8a6213d70accb403b82924a1c229e733433a5ef"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: geneve: fix header validation in geneve[6]_xmit_skb", "id": "2281891", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281891"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ngeneve: fix header validation in geneve[6]_xmit_skb\nsyzbot is able to trigger an uninit-value in geneve_xmit() [1]\nProblem : While most ip tunnel helpers (like ip_tunnel_get_dsfield())\nuses skb_protocol(skb, true), pskb_inet_may_pull() is only using\nskb->protocol.\nIf anything else than ETH_P_IPV6 or ETH_P_IP is found in skb->protocol,\npskb_inet_may_pull() does nothing at all.\nIf a vlan tag was provided by the caller (af_packet in the syzbot case),\nthe network header might not point to the correct location, and skb\nlinear part could be smaller than expected.\nAdd skb_vlan_inet_prepare() to perform a complete mac validation.\nUse this in geneve for the moment, I suspect we need to adopt this\nmore broadly.\nv4 - Jakub reported v3 broke l2_tos_ttl_inherit.sh selftest\n- Only call __vlan_get_protocol() for vlan types.\nv2,v3 - Addressed Sabrina comments on v1 and v2\n[1]\nBUG: KMSAN: uninit-value in geneve_xmit_skb drivers/net/geneve.c:910 [inline]\nBUG: KMSAN: uninit-value in geneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\ngeneve_xmit_skb drivers/net/geneve.c:910 [inline]\ngeneve_xmit+0x302d/0x5420 drivers/net/geneve.c:1030\n__netdev_start_xmit include/linux/netdevice.h:4903 [inline]\nnetdev_start_xmit include/linux/netdevice.h:4917 [inline]\nxmit_one net/core/dev.c:3531 [inline]\ndev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547\n__dev_queue_xmit+0x348d/0x52c0 net/core/dev.c:4335\ndev_queue_xmit include/linux/netdevice.h:3091 [inline]\npacket_xmit+0x9c/0x6c0 net/packet/af_packet.c:276\npacket_snd net/packet/af_packet.c:3081 [inline]\npacket_sendmsg+0x8bb0/0x9ef0 net/packet/af_packet.c:3113\nsock_sendmsg_nosec net/socket.c:730 [inline]\n__sock_sendmsg+0x30f/0x380 net/socket.c:745\n__sys_sendto+0x685/0x830 net/socket.c:2191\n__do_sys_sendto net/socket.c:2203 [inline]\n__se_sys_sendto net/socket.c:2199 [inline]\n__x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\ndo_syscall_64+0xd5/0x1f0\nentry_SYSCALL_64_after_hwframe+0x6d/0x75\nUninit was created at:\nslab_post_alloc_hook mm/slub.c:3804 [inline]\nslab_alloc_node mm/slub.c:3845 [inline]\nkmem_cache_alloc_node+0x613/0xc50 mm/slub.c:3888\nkmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577\n__alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668\nalloc_skb include/linux/skbuff.h:1318 [inline]\nalloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6504\nsock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2795\npacket_alloc_skb net/packet/af_packet.c:2930 [inline]\npacket_snd net/packet/af_packet.c:3024 [inline]\npacket_sendmsg+0x722d/0x9ef0 net/packet/af_packet.c:3113\nsock_sendmsg_nosec net/socket.c:730 [inline]\n__sock_sendmsg+0x30f/0x380 net/socket.c:745\n__sys_sendto+0x685/0x830 net/socket.c:2191\n__do_sys_sendto net/socket.c:2203 [inline]\n__se_sys_sendto net/socket.c:2199 [inline]\n__x64_sys_sendto+0x125/0x1d0 net/socket.c:2199\ndo_syscall_64+0xd5/0x1f0\nentry_SYSCALL_64_after_hwframe+0x6d/0x75\nCPU: 0 PID: 5033 Comm: syz-executor346 Not tainted 6.9.0-rc1-syzkaller-00005-g928a87efa423 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024"], "name": "CVE-2024-35973", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35973\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35973\nhttps://lore.kernel.org/linux-cve-announce/2024052024-CVE-2024-35973-1b5b@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 4.19.313, kernel 5.4.275, kernel 5.10.216, kernel 5.15.156, kernel 6.1.87, kernel 6.6.28, kernel 6.8.7, kernel 6.9"}