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-rt-debug-modules-extraUpgrade kernel-debugUpgrade kernel-toolsUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-develUpgrade kernel-coreUpgrade kernel-64k-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-rtUpgrade kernel-64k-develUpgrade kernel-debug-uki-virtUpgrade kernel-debug-modules-extraUpgrade kernel-tools-libsUpgrade kernel-debug-develUpgrade kernel-debug-coreUpgrade kernel-docUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-modules-coreUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-develUpgrade kernel-rt-modulesUpgrade kernel-64k-debug-modules-coreUpgrade rvUpgrade kernel-64k-debug-develUpgrade kernel-64k-modules-coreUpgrade kernel-modulesUpgrade kernel-rt-debugUpgrade kernel-uki-virtUpgrade kernel-debug-modules-coreUpgrade kernel-rt-modules-extraUpgrade kernel-64k-debug-modules-extraUpgrade kernel-cross-headersUpgrade kernel-64kUpgrade kernel-64k-devel-matchedUpgrade kernelUpgrade libperfUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-64k-debugUpgrade kernel-64k-modules-extraUpgrade kernel-devel-matchedUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-64k-debug-coreUpgrade kernel-abi-stablelistsUpgrade perfUpgrade kernel-tools-libs-develUpgrade kernel-debug-devel-matchedUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-develUpgrade kernel-rt-coreUpgrade kernel-zfcpdumpUpgrade kernel-headersUpgrade kernel-rt-debug-coreUpgrade kernel-zfcpdump-coreUpgrade kernel-64k-modulesUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel-rt-debug-modules-coreUpgrade rtlaUpgrade kernel-modules-coreUpgrade bpftool | Oct 28, 2024 | Aug 17, 2024 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Sep 2, 2024 | Aug 17, 2024 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Oct 16, 2024 | Aug 17, 2024 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | Oct 17, 2024 | Aug 17, 2024 |
| Rocky_linux | — | Upgrade kernel-cross-headersUpgrade kernel-rt-debug-modules-extraUpgrade perf-debuginfoUpgrade kernel-devel-matchedUpgrade kernel-rt-debuginfoUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-modules-extraUpgrade kernel-debug-modules-extraUpgrade kernel-headersUpgrade kernel-zfcpdump-coreUpgrade kernel-debug-devel-matchedUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-rtUpgrade rvUpgrade kernel-tools-libs-develUpgrade kernel-toolsUpgrade kernel-modules-coreUpgrade kernelUpgrade libperf-debuginfoUpgrade libperfUpgrade kernel-rt-modules-coreUpgrade kernel-zfcpdump-modules-coreUpgrade perfUpgrade kernel-zfcpdump-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-debug-kvmUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-debuginfoUpgrade kernel-rt-debug-coreUpgrade kernel-debuginfoUpgrade kernel-tools-libsUpgrade kernel-debug-coreUpgrade kernel-rt-develUpgrade kernel-debug-uki-virtUpgrade kernel-debug-develUpgrade kernel-rt-debugUpgrade bpftoolUpgrade kernel-modulesUpgrade kernel-develUpgrade kernel-debug-modulesUpgrade rtlaUpgrade python3-perfUpgrade kernel-rt-modulesUpgrade kernel-debug-debuginfoUpgrade kernel-debugUpgrade kernel-tools-debuginfoUpgrade kernel-rt-coreUpgrade kernel-zfcpdumpUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-modulesUpgrade bpftool-debuginfoUpgrade kernel-uki-virtUpgrade kernel-rt-debug-modules-coreUpgrade kernel-coreUpgrade kernel-debug-modules-coreUpgrade kernel-modules-extraUpgrade python3-perf-debuginfo | Nov 4, 2024 | Aug 17, 2024 |
| Ubuntu | — | Upgrade linux-image-5.15.0-125-generic-lpaeUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-6.8.0-1015-gkeUpgrade linux-image-gkeUpgrade linux-image-oem-20.04bUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oem-22.04aUpgrade linux-image-intel-iotgUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-gkeopUpgrade linux-image-5.15.0-1065-raspiUpgrade linux-image-6.8.0-1018-oemUpgrade linux-image-6.8.0-1002-gkeopUpgrade linux-image-6.8.0-1019-nvidia-64kUpgrade linux-image-intelUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-125-lowlatency-64kUpgrade linux-image-5.15.0-1067-nvidiaUpgrade linux-image-6.8.0-1017-oracle-64kUpgrade linux-image-ibmUpgrade linux-image-oem-24.04Upgrade linux-image-genericUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1071-gcpUpgrade linux-image-azure-lts-22.04Upgrade linux-image-5.15.0-1065-ibmUpgrade linux-image-gke-5.15Upgrade linux-image-6.8.0-1020-awsUpgrade linux-image-ibm-classicUpgrade linux-image-5.15.0-125-genericUpgrade linux-image-6.8.0-1017-ibmUpgrade linux-image-generic-lpaeUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-1067-nvidia-lowlatencyUpgrade linux-image-gkeop-6.8Upgrade linux-image-5.15.0-125-generic-64kUpgrade linux-image-5.15.0-125-lowlatencyUpgrade linux-image-5.15.0-1055-gkeopUpgrade linux-image-5.15.0-1069-gkeUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-50-generic-64kUpgrade linux-image-5.15.0-1072-awsUpgrade linux-image-6.8.0-1020-azureUpgrade linux-image-6.8.0-1019-nvidia-lowlatency-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcpUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-6.8.0-1017-oracleUpgrade linux-image-6.8.0-1016-raspiUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1019-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1019-nvidiaUpgrade linux-image-oem-20.04Upgrade linux-image-5.15.0-1070-oracleUpgrade linux-image-5.15.0-1075-azureUpgrade linux-image-nvidia-64kUpgrade linux-image-azureUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-kvmUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1020-azure-fdeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-oem-24.04aUpgrade linux-image-5.15.0-1069-kvmUpgrade linux-image-6.8.0-50-genericUpgrade linux-image-5.15.0-1078-azureUpgrade linux-image-oem-20.04cUpgrade linux-image-6.8.0-50-lowlatency-64kUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-oracleUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-raspiUpgrade linux-image-5.15.0-1038-xilinx-zynqmpUpgrade linux-image-5.15.0-1067-intel-iotgUpgrade linux-image-oem-22.04dUpgrade linux-image-awsUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-azure-cvmUpgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-50-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-oem-20.04dUpgrade linux-image-6.8.0-1019-gcpUpgrade linux-image-generic-hwe-22.04 | 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 |
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