{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-35888", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-17T13:50:33.113Z", "datePublished": "2024-05-19T08:34:44.428Z", "dateUpdated": "2024-11-06T15:16:34.913Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:24:29.695Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerspan: make sure erspan_base_hdr is present in skb->head\n\nsyzbot reported a problem in ip6erspan_rcv() [1]\n\nIssue is that ip6erspan_rcv() (and erspan_rcv()) no longer make\nsure erspan_base_hdr is present in skb linear part (skb->head)\nbefore getting @ver field from it.\n\nAdd the missing pskb_may_pull() calls.\n\nv2: Reload iph pointer in erspan_rcv() after pskb_may_pull()\n because skb->head might have changed.\n\n[1]\n\n BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]\n BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n pskb_may_pull include/linux/skbuff.h:2756 [inline]\n ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438\n ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310\n __netif_receive_skb_one_core net/core/dev.c:5538 [inline]\n __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652\n netif_receive_skb_internal net/core/dev.c:5738 [inline]\n netif_receive_skb+0x58/0x660 net/core/dev.c:5798\n tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549\n tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\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 tun_alloc_skb drivers/net/tun.c:1525 [inline]\n tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv4/ip_gre.c", "net/ipv6/ip6_gre.c"], "versions": [{"version": "0a198e0bb8be", "lessThan": "06a939f72a24", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "e54a0c79cdc2", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "b14b9f9503ec", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "ee0088101bee", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "1db7fcb2b290", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "4e3fdeecec57", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "0ac328a5a413", "status": "affected", "versionType": "git"}, {"version": "cb73ee40b1b3", "lessThan": "17af420545a7", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv4/ip_gre.c", "net/ipv6/ip6_gre.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.312", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.274", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.215", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.154", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.85", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.26", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.5", "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/06a939f72a24a7d8251f84cf4c042df86c6666ac"}, {"url": "https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5"}, {"url": "https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85"}, {"url": "https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7"}, {"url": "https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d"}, {"url": "https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d"}, {"url": "https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446"}, {"url": "https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0"}], "title": "erspan: make sure erspan_base_hdr is present in skb->head", "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": "2024-06-18T16:55:13.123300Z", "id": "CVE-2024-35888", "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": "2024-11-06T15:16:34.913Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:21:48.504Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/06a939f72a24a7d8251f84cf4c042df86c6666ac", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0", "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/06a939f72a24a7d8251f84cf4c042df86c6666ac", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0", "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": "2024-08-02T03:21:48.504Z"}}, {"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-2024-35888", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-18T16:55:13.123300Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-noinfo Not enough information"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-18T16:55:18.378Z"}}], "cna": {"title": "erspan: make sure erspan_base_hdr is present in skb->head", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "0a198e0bb8be", "lessThan": "06a939f72a24", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "e54a0c79cdc2", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "b14b9f9503ec", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "ee0088101bee", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "1db7fcb2b290", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "4e3fdeecec57", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "0ac328a5a413", "versionType": "git"}, {"status": "affected", "version": "cb73ee40b1b3", "lessThan": "17af420545a7", "versionType": "git"}], "programFiles": ["net/ipv4/ip_gre.c", "net/ipv6/ip6_gre.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"status": "unaffected", "version": "0", "lessThan": "5.0", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.312", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.274", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.215", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.154", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.85", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.26", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.5", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/ipv4/ip_gre.c", "net/ipv6/ip6_gre.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/06a939f72a24a7d8251f84cf4c042df86c6666ac"}, {"url": "https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5"}, {"url": "https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85"}, {"url": "https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7"}, {"url": "https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d"}, {"url": "https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d"}, {"url": "https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446"}, {"url": "https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerspan: make sure erspan_base_hdr is present in skb->head\n\nsyzbot reported a problem in ip6erspan_rcv() [1]\n\nIssue is that ip6erspan_rcv() (and erspan_rcv()) no longer make\nsure erspan_base_hdr is present in skb linear part (skb->head)\nbefore getting @ver field from it.\n\nAdd the missing pskb_may_pull() calls.\n\nv2: Reload iph pointer in erspan_rcv() after pskb_may_pull()\n because skb->head might have changed.\n\n[1]\n\n BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]\n BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n pskb_may_pull include/linux/skbuff.h:2756 [inline]\n ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438\n ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310\n __netif_receive_skb_one_core net/core/dev.c:5538 [inline]\n __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652\n netif_receive_skb_internal net/core/dev.c:5738 [inline]\n netif_receive_skb+0x58/0x660 net/core/dev.c:5798\n tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549\n tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\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 tun_alloc_skb drivers/net/tun.c:1525 [inline]\n tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:24:29.695Z"}}}, "cveMetadata": {"cveId": "CVE-2024-35888", "state": "PUBLISHED", "dateUpdated": "2024-11-06T15:16:34.913Z", "dateReserved": "2024-05-17T13:50:33.113Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-19T08:34:44.428Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerspan: make sure erspan_base_hdr is present in skb->head\n\nsyzbot reported a problem in ip6erspan_rcv() [1]\n\nIssue is that ip6erspan_rcv() (and erspan_rcv()) no longer make\nsure erspan_base_hdr is present in skb linear part (skb->head)\nbefore getting @ver field from it.\n\nAdd the missing pskb_may_pull() calls.\n\nv2: Reload iph pointer in erspan_rcv() after pskb_may_pull()\n because skb->head might have changed.\n\n[1]\n\n BUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n BUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]\n BUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n BUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\n pskb_may_pull include/linux/skbuff.h:2756 [inline]\n ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\n gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\n ip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438\n ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n dst_input include/net/dst.h:460 [inline]\n ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79\n NF_HOOK include/linux/netfilter.h:314 [inline]\n ipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310\n __netif_receive_skb_one_core net/core/dev.c:5538 [inline]\n __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652\n netif_receive_skb_internal net/core/dev.c:5738 [inline]\n netif_receive_skb+0x58/0x660 net/core/dev.c:5798\n tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549\n tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\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 tun_alloc_skb drivers/net/tun.c:1525 [inline]\n tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846\n tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n call_write_iter include/linux/fs.h:2108 [inline]\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0xb63/0x1520 fs/read_write.c:590\n ksys_write+0x20f/0x4c0 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x93/0xe0 fs/read_write.c:652\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nCPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: erspan: aseg\u00farese de que erspan_base_hdr est\u00e9 presente en skb->head syzbot inform\u00f3 un problema en ip6erspan_rcv() [1] El problema es que ip6erspan_rcv() (y erspan_rcv()) ya no funcionan aseg\u00farese de que erspan_base_hdr est\u00e9 presente en la parte lineal de skb (skb->head) antes de obtener el campo @ver. Agregue las llamadas pskb_may_pull() que faltan. v2: Vuelva a cargar el puntero iph en erspan_rcv() despu\u00e9s de pskb_may_pull() porque skb->head podr\u00eda haber cambiado. [1] ERROR: KMSAN: valor uninit en pskb_may_pull_reason include/linux/skbuff.h:2742 [en l\u00ednea] ERROR: KMSAN: valor uninit en pskb_may_pull include/linux/skbuff.h:2756 [en l\u00ednea] ERROR: KMSAN: uninit -valor en ip6erspan_rcv net/ipv6/ip6_gre.c:541 [en l\u00ednea] ERROR: KMSAN: valor uninit en gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610 pskb_may_pull_reason include/linux/skbuff.h:2742 [en l\u00ednea ] PSKB_MAY_PULL incluye/linux/skbuff.h: 2756 [en l\u00ednea] ip6erspan_rcv net/ipv6/ip6_gre.c: 541 [inline] gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c: 610 ip6_protocol_reLiver+0x1d4cu 6/ ip6_input.c:438 ip6_input_finish net/ipv6/ip6_input.c:483 [en l\u00ednea] NF_HOOK include/linux/netfilter.h:314 [en l\u00ednea] ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492 ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586 dst_input include/net/dst.h:460 [en l\u00ednea] ip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:314 [en l\u00ednea] ipv6_rcv +0xde/0x390 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5538 [en l\u00ednea] __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652 netif_receive_skb_internal net/core/dev.c:5738 [en l\u00ednea] netif_receive_skb+0x58/0x660 net/core/dev.c:5798 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549 tun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2108 [en l\u00ednea] new_sync_write fs/read_write.c:497 [en l\u00ednea] vfs_write+0xb63/0x1520 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [en l\u00ednea] __se_sys_write fs/read_write.c:652 [en l\u00ednea] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 do_syscall_64+0xd5/0x1f0 entrada_SYSCALL_64 _despu\u00e9s_hwframe+0x6d/ 0x75 Uninit was created at: slab_post_alloc_hook mm/slub.c:3804 [inline] slab_alloc_node mm/slub.c:3845 [inline] 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 tun_alloc_skb drivers/net/tun.c:1525 [en l\u00ednea] tun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2108 [en l\u00ednea] new_sync_write fs/read_write.c:497 [en l\u00ednea] vfs_write+0xb63/0x1520 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs /read_write.c:655 [en l\u00ednea] __se_sys_write fs/read_write.c:652 [en l\u00ednea] __x64_sys_write+0x93/0xe0 fs/read_write.c:652 do_syscall_64+0xd5/0x1f0 Entry_SYSCALL_64_after_hwframe+0x6d/0x75 CPU: 1 Comunicaci\u00f3n 5045: syz-executor114 No contaminado 6.9.0-rc1-syzkaller-00021-g962490525cff #0"}], "id": "CVE-2024-35888", "lastModified": "2024-11-21T09:21:07.963", "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": "2024-05-19T09:15:09.910", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/06a939f72a24a7d8251f84cf4c042df86c6666ac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/06a939f72a24a7d8251f84cf4c042df86c6666ac"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:4352", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.8.1.rt7.349.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-07-08T00:00:00Z"}, {"advisory": "RHSA-2024:4211", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.8.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-07-02T00:00:00Z"}, {"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: erspan: make sure erspan_base_hdr is present in skb->head", "id": "2281693", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281693"}, "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:\nerspan: make sure erspan_base_hdr is present in skb->head\nsyzbot reported a problem in ip6erspan_rcv() [1]\nIssue is that ip6erspan_rcv() (and erspan_rcv()) no longer make\nsure erspan_base_hdr is present in skb linear part (skb->head)\nbefore getting @ver field from it.\nAdd the missing pskb_may_pull() calls.\nv2: Reload iph pointer in erspan_rcv() after pskb_may_pull()\nbecause skb->head might have changed.\n[1]\nBUG: KMSAN: uninit-value in pskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\nBUG: KMSAN: uninit-value in pskb_may_pull include/linux/skbuff.h:2756 [inline]\nBUG: KMSAN: uninit-value in ip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\nBUG: KMSAN: uninit-value in gre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\npskb_may_pull_reason include/linux/skbuff.h:2742 [inline]\npskb_may_pull include/linux/skbuff.h:2756 [inline]\nip6erspan_rcv net/ipv6/ip6_gre.c:541 [inline]\ngre_rcv+0x11f8/0x1930 net/ipv6/ip6_gre.c:610\nip6_protocol_deliver_rcu+0x1d4c/0x2ca0 net/ipv6/ip6_input.c:438\nip6_input_finish net/ipv6/ip6_input.c:483 [inline]\nNF_HOOK include/linux/netfilter.h:314 [inline]\nip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\nip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\ndst_input include/net/dst.h:460 [inline]\nip6_rcv_finish+0x955/0x970 net/ipv6/ip6_input.c:79\nNF_HOOK include/linux/netfilter.h:314 [inline]\nipv6_rcv+0xde/0x390 net/ipv6/ip6_input.c:310\n__netif_receive_skb_one_core net/core/dev.c:5538 [inline]\n__netif_receive_skb+0x1da/0xa00 net/core/dev.c:5652\nnetif_receive_skb_internal net/core/dev.c:5738 [inline]\nnetif_receive_skb+0x58/0x660 net/core/dev.c:5798\ntun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1549\ntun_get_user+0x5566/0x69e0 drivers/net/tun.c:2002\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\ncall_write_iter include/linux/fs.h:2108 [inline]\nnew_sync_write fs/read_write.c:497 [inline]\nvfs_write+0xb63/0x1520 fs/read_write.c:590\nksys_write+0x20f/0x4c0 fs/read_write.c:643\n__do_sys_write fs/read_write.c:655 [inline]\n__se_sys_write fs/read_write.c:652 [inline]\n__x64_sys_write+0x93/0xe0 fs/read_write.c:652\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\ntun_alloc_skb drivers/net/tun.c:1525 [inline]\ntun_get_user+0x209a/0x69e0 drivers/net/tun.c:1846\ntun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\ncall_write_iter include/linux/fs.h:2108 [inline]\nnew_sync_write fs/read_write.c:497 [inline]\nvfs_write+0xb63/0x1520 fs/read_write.c:590\nksys_write+0x20f/0x4c0 fs/read_write.c:643\n__do_sys_write fs/read_write.c:655 [inline]\n__se_sys_write fs/read_write.c:652 [inline]\n__x64_sys_write+0x93/0xe0 fs/read_write.c:652\ndo_syscall_64+0xd5/0x1f0\nentry_SYSCALL_64_after_hwframe+0x6d/0x75\nCPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0"], "name": "CVE-2024-35888", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35888\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35888\nhttps://lore.kernel.org/linux-cve-announce/2024051947-CVE-2024-35888-1e04@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 4.19.312, kernel 5.4.274, kernel 5.10.215, kernel 5.15.154, kernel 6.1.85, kernel 6.6.26, kernel 6.8.5, kernel 6.9"}