{"id":"CVE-2024-42272","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsched: act_ct: take care of padding in struct zones_ht_key\n\nBlamed commit increased lookup key size from 2 bytes to 16 bytes,\nbecause zones_ht_key got a struct net poin…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsched: act_ct: take care of padding in struct zones_ht_key\n\nBlamed commit increased lookup key size from 2 bytes to 16 bytes,\nbecause zones_ht_key got a struct net poin…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-908"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.10.221, < 5.10.224","linux_kernel >= 5.15.162, < 5.15.165","linux_kernel >= 6.1.96, < 6.1.104","linux_kernel >= 6.6.36, < 6.6.45","linux_kernel >= 6.9.7, < 6.10","linux_kernel >= 6.10, < 6.10.4","linux_kernel = 6.11"],"patched":["linux_kernel 6.10.4"],"published":"2024-08-17","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:18:44.993","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-42272","references":[{"url":"https://git.kernel.org/stable/c/2191a54f63225b548fd8346be3611c3219a24738","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3a5b68869dbe14f1157c6a24ac71923db060eeab","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3ddefcb8f75e312535e2e7d5fef9932019ba60f2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d06daf0ad645d9225a3ff6958dd82e1f3988fa64","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d7cc186d0973afce0e1237c37f7512c01981fb79","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00241,"epssPercentile":0.15204,"ingestedAt":"2026-10-15T03:30:12.731Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-10T16:12:08.203348Z"},"slug":"CVE-2024-42272","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsched: act_ct: take care of padding in struct zones_ht_key\n\nBlamed commit increased lookup key size from 2 bytes to 16 bytes,\nbecause zones_ht_key got a struct net pointer.\n\nMake sure rhashtable_lookup() is not using the padding bytes\nwhich are not initialized.\n\n BUG: KMSAN: uninit-value in rht_ptr_rcu include/linux/rhashtable.h:376 [inline]\n BUG: KMSAN: uninit-value in __rhashtable_lookup include/linux/rhashtable.h:607 [inline]\n BUG: KMSAN: uninit-value in rhashtable_lookup include/linux/rhashtable.h:646 [inline]\n BUG: KMSAN: uninit-value in rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline]\n BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329\n  rht_ptr_rcu include/linux/rhashtable.h:376 [inline]\n  __rhashtable_lookup include/linux/rhashtable.h:607 [inline]\n  rhashtable_lookup include/linux/rhashtable.h:646 [inline]\n  rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline]\n  tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329\n  tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408\n  tcf_action_init_1+0x6cc/0xb30 net/sched/act_api.c:1425\n  tcf_action_init+0x458/0xf00 net/sched/act_api.c:1488\n  tcf_action_add net/sched/act_api.c:2061 [inline]\n  tc_ctl_action+0x4be/0x19d0 net/sched/act_api.c:2118\n  rtnetlink_rcv_msg+0x12fc/0x1410 net/core/rtnetlink.c:6647\n  netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550\n  rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665\n  netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]\n  netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1357\n  netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1901\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x30f/0x380 net/socket.c:745\n  ____sys_sendmsg+0x877/0xb60 net/socket.c:2597\n  ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2651\n  __sys_sendmsg net/socket.c:2680 [inline]\n  __do_sys_sendmsg net/socket.c:2689 [inline]\n  __se_sys_sendmsg net/socket.c:2687 [inline]\n  __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2687\n  x64_sys_call+0x2dd6/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:47\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\nLocal variable key created at:\n  tcf_ct_flow_table_get+0x4a/0x2260 net/sched/act_ct.c:324\n  tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408\n\n## Affected\n\n- `linux_kernel >= 5.10.221, < 5.10.224`\n- `linux_kernel >= 5.15.162, < 5.15.165`\n- `linux_kernel >= 6.1.96, < 6.1.104`\n- `linux_kernel >= 6.6.36, < 6.6.45`\n- `linux_kernel >= 6.9.7, < 6.10`\n- `linux_kernel >= 6.10, < 6.10.4`\n- `linux_kernel = 6.11`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.10.4`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}