{"id":"CVE-2024-42272","revision":null,"records":[{"revision":"959fbadcdf1e4a5399a077d16b834646","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-42272","aliases":[],"title":"sched: act_ct: take care of padding in struct zones_ht_key","description":"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 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","state":0,"publishedAt":"2024-08-17T08:54:26.755+00:00","modifiedAt":"2026-10-15T00:48:09.451+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/sched/act_ct.c\"\n ],\n \"versions\": [\n {\n \"version\": \"03f625505e27f709390a86c9b78d3707f4c23df8\",\n \"lessThan\": \"7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"aa1f81fe3a059bc984b230b5352ab89d06aa3c7b\",\n \"lessThan\": \"3ddefcb8f75e312535e2e7d5fef9932019ba60f2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"2f82f75f843445daa81e8b2a76774b1348033ce6\",\n \"lessThan\": \"d06daf0ad645d9225a3ff6958dd82e1f3988fa64\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9126fd82e9edc7b4796f756e4b258d34f17e5e4a\",\n \"lessThan\": \"d7cc186d0973afce0e1237c37f7512c01981fb79\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"88c67aeb14070bab61d3dd8be96c8b42ebcaf53a\",\n \"lessThan\": \"3a5b68869dbe14f1157c6a24ac71923db060eeab\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"88c67aeb14070bab61d3dd8be96c8b42ebcaf53a\",\n \"lessThan\": \"2191a54f63225b548fd8346be3611c3219a24738\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4382b854975ae96fbfcc83a1d79b5c063c1aaa8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.10.221\",\n \"lessThan\": \"5.10.224\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.162\",\n \"lessThan\": \"5.15.165\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.96\",\n \"lessThan\": \"6.1.104\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.36\",\n \"lessThan\": \"6.6.45\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9.7\",\n \"lessThan\": \"6.10\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/sched/act_ct.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.10\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.10\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.224\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.165\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.104\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.45\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.10.4\",\n \"lessThanOrEqual\": \"6.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.11\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee","https://git.kernel.org/stable/c/3ddefcb8f75e312535e2e7d5fef9932019ba60f2","https://git.kernel.org/stable/c/d06daf0ad645d9225a3ff6958dd82e1f3988fa64","https://git.kernel.org/stable/c/d7cc186d0973afce0e1237c37f7512c01981fb79","https://git.kernel.org/stable/c/3a5b68869dbe14f1157c6a24ac71923db060eeab","https://git.kernel.org/stable/c/2191a54f63225b548fd8346be3611c3219a24738"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-42272","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-42272","identifiers":["CVE-2024-42272"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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