In the Linux kernel, the following vulnerability has been resolved:
sched: act_ct: take care of padding in struct zones_ht_key
Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zones_ht_key got a struct net pointer.
Make sure rhashtable_lookup() is not using the padding bytes which are not initialized.
BUG: KMSAN: uninit-value in rht_ptr_rcu include/linux/rhashtable.h:376 [inline] BUG: KMSAN: uninit-value in __rhashtable_lookup include/linux/rhashtable.h:607 [inline] BUG: KMSAN: uninit-value in rhashtable_lookup include/linux/rhashtable.h:646 [inline] BUG: KMSAN: uninit-value in rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 rht_ptr_rcu include/linux/rhashtable.h:376 [inline] __rhashtable_lookup include/linux/rhashtable.h:607 [inline] rhashtable_lookup include/linux/rhashtable.h:646 [inline] rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408 tcf_action_init_1+0x6cc/0xb30 net/sched/act_api.c:1425 tcf_action_init+0x458/0xf00 net/sched/act_api.c:1488 tcf_action_add net/sched/act_api.c:2061 [inline] tc_ctl_action+0x4be/0x19d0 net/sched/act_api.c:2118 rtnetlink_rcv_msg+0x12fc/0x1410 net/core/rtnetlink.c:6647 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 ____sys_sendmsg+0x877/0xb60 net/socket.c:2597 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2651 __sys_sendmsg net/socket.c:2680 [inline] __do_sys_sendmsg net/socket.c:2689 [inline] __se_sys_sendmsg net/socket.c:2687 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2687 x64_sys_call+0x2dd6/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Local variable key created at: tcf_ct_flow_table_get+0x4a/0x2260 net/sched/act_ct.c:324 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-modules-extraUpgrade kernel-zfcpdump-modules-coreUpgrade libperfUpgrade kernel-debug-devel-matchedUpgrade kernel-abi-stablelistsUpgrade kernel-64k-debug-coreUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-cross-headersUpgrade kernel-64kUpgrade kernel-develUpgrade kernel-64k-modulesUpgrade perfUpgrade kernel-rt-coreUpgrade kernel-64k-modules-extraUpgrade kernelUpgrade kernel-zfcpdump-coreUpgrade kernel-64k-devel-matchedUpgrade kernel-64k-debugUpgrade kernel-64k-debug-modules-extraUpgrade kernel-devel-matchedUpgrade python3-perfUpgrade kernel-tools-libs-develUpgrade bpftoolUpgrade kernel-coreUpgrade kernel-rt-debugUpgrade kernel-rt-develUpgrade kernel-rt-debug-develUpgrade kernel-zfcpdump-develUpgrade kernel-debug-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-modules-coreUpgrade kernel-uki-virtUpgrade kernel-modulesUpgrade kernel-rt-debug-modules-extraUpgrade kernel-64k-modules-coreUpgrade kernel-64k-coreUpgrade kernel-zfcpdumpUpgrade kernel-rt-debug-modules-coreUpgrade kernel-64k-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-64k-debug-develUpgrade kernel-rt-debug-modulesUpgrade rtlaUpgrade kernel-headersUpgrade kernel-64k-debug-modules-coreUpgrade rvUpgrade kernel-modules-extraUpgrade kernel-rt-debug-coreUpgrade kernel-rt-modulesUpgrade kernel-toolsUpgrade kernel-debug-modulesUpgrade kernel-debug-coreUpgrade kernel-rt-modules-coreUpgrade kernel-debug-uki-virtUpgrade kernel-64k-debug-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-rtUpgrade kernel-debugUpgrade kernel-tools-libsUpgrade kernel-docUpgrade kernel-debug-devel | Oct 28, 2024 | Aug 17, 2024 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 2, 2024 | Aug 17, 2024 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Oct 16, 2024 | Aug 17, 2024 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rtNo solution exists | Oct 17, 2024 | Aug 17, 2024 |
| Rocky_linux | — | Upgrade kernel-zfcpdump-modules-extraUpgrade kernel-debugUpgrade kernel-modulesUpgrade python3-perf-debuginfoUpgrade kernel-debug-modules-coreUpgrade kernel-rt-debug-kvmUpgrade kernel-modules-extraUpgrade kernel-rt-develUpgrade kernel-zfcpdumpUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-coreUpgrade rtlaUpgrade kernel-debug-debuginfoUpgrade kernel-rt-modulesUpgrade kernel-tools-libsUpgrade kernel-debug-coreUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-modulesUpgrade kernel-debuginfoUpgrade kernel-rt-debugUpgrade kernel-rt-debug-modules-coreUpgrade kernel-zfcpdump-develUpgrade kernel-rt-coreUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-debug-develUpgrade kernel-tools-debuginfoUpgrade kernel-debug-uki-virtUpgrade kernel-rt-kvmUpgrade kernel-coreUpgrade bpftoolUpgrade python3-perfUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade kernel-rt-debug-modulesUpgrade kernel-headersUpgrade kernel-rt-debuginfoUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-modules-extraUpgrade kernel-rt-modules-coreUpgrade kernel-devel-matchedUpgrade kernel-rt-debug-modules-extraUpgrade kernel-cross-headersUpgrade kernel-toolsUpgrade kernel-zfcpdump-coreUpgrade kernel-rtUpgrade kernel-debug-devel-matchedUpgrade rvUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-tools-libs-develUpgrade kernel-modules-coreUpgrade kernel-debug-modules-extraUpgrade perf-debuginfoUpgrade libperf-debuginfoUpgrade perfUpgrade kernel-zfcpdump-modules-coreUpgrade kernelUpgrade libperf | Nov 4, 2024 | Aug 17, 2024 |
| Ubuntu | — | Upgrade linux-image-intel-iotgUpgrade linux-image-virtualUpgrade linux-image-6.8.0-1020-awsUpgrade linux-image-oem-22.04aUpgrade linux-image-5.15.0-125-lowlatencyUpgrade linux-image-ibm-classicUpgrade linux-image-azure-lts-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1065-ibmUpgrade linux-image-oem-22.04cUpgrade linux-image-5.15.0-1071-gcpUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-50-generic-64kUpgrade linux-image-oem-20.04bUpgrade linux-image-5.15.0-125-generic-lpaeUpgrade linux-image-6.8.0-1019-nvidia-64kUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1020-azureUpgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-5.15.0-125-lowlatency-64kUpgrade linux-image-6.8.0-1018-oemUpgrade linux-image-oem-24.04Upgrade linux-image-6.8.0-1017-oracle-64kUpgrade linux-image-gkeUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-5.15.0-1067-nvidia-lowlatencyUpgrade linux-image-6.8.0-1002-gkeopUpgrade linux-image-5.15.0-1065-raspiUpgrade linux-image-6.8.0-1017-ibmUpgrade linux-image-gkeop-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-ibmUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-1067-nvidiaUpgrade linux-image-5.15.0-1072-awsUpgrade linux-image-gkeopUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-intelUpgrade linux-image-5.15.0-1069-gkeUpgrade linux-image-5.15.0-125-genericUpgrade linux-image-5.15.0-1055-gkeopUpgrade linux-image-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-125-generic-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1015-gkeUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1069-kvmUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-oem-20.04cUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-5.15.0-1078-azureUpgrade linux-image-azure-cvmUpgrade linux-image-awsUpgrade linux-image-5.15.0-1067-intel-iotgUpgrade linux-image-oem-22.04dUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-1019-gcpUpgrade linux-image-6.8.0-1020-azure-fdeUpgrade linux-image-6.8.0-50-lowlatency-64kUpgrade linux-image-6.8.0-1019-nvidia-lowlatency-64kUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-oem-24.04aUpgrade linux-image-gkeop-5.15Upgrade linux-image-raspiUpgrade linux-image-5.15.0-1038-xilinx-zynqmpUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1016-raspiUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1017-oracleUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oem-22.04bUpgrade linux-image-gcpUpgrade linux-image-azure-fdeUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1019-nvidia-lowlatencyUpgrade linux-image-oracleUpgrade linux-image-kvmUpgrade linux-image-6.8.0-50-lowlatencyUpgrade linux-image-5.15.0-1075-azureUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-5.15.0-1070-oracleUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-oem-20.04Upgrade linux-image-6.8.0-1019-nvidiaUpgrade linux-image-nvidia-64kUpgrade linux-image-azureUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-50-generic | Nov 12, 2024 | Aug 17, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 22, 2025 | Aug 17, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub