Ubuntu: (Multiple Advisories) (CVE-2024-42272): Linux kernel vulnerabilities
Description
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
Solution(s)
- ubuntu-upgrade-linux-image-5-15-0-1038-xilinx-zynqmp
- ubuntu-upgrade-linux-image-5-15-0-1055-gkeop
- ubuntu-upgrade-linux-image-5-15-0-1065-ibm
- ubuntu-upgrade-linux-image-5-15-0-1065-raspi
- ubuntu-upgrade-linux-image-5-15-0-1067-nvidia
- ubuntu-upgrade-linux-image-5-15-0-1067-nvidia-lowlatency
- ubuntu-upgrade-linux-image-5-15-0-1069-gke
- ubuntu-upgrade-linux-image-5-15-0-1069-kvm
- ubuntu-upgrade-linux-image-5-15-0-1070-oracle
- ubuntu-upgrade-linux-image-5-15-0-1071-gcp
- ubuntu-upgrade-linux-image-5-15-0-1072-aws
- ubuntu-upgrade-linux-image-5-15-0-1075-azure
- ubuntu-upgrade-linux-image-5-15-0-125-generic
- ubuntu-upgrade-linux-image-5-15-0-125-generic-64k
- ubuntu-upgrade-linux-image-5-15-0-125-generic-lpae
- ubuntu-upgrade-linux-image-5-15-0-125-lowlatency
- ubuntu-upgrade-linux-image-5-15-0-125-lowlatency-64k
- ubuntu-upgrade-linux-image-aws
- ubuntu-upgrade-linux-image-aws-lts-22-04
- ubuntu-upgrade-linux-image-azure-lts-22-04
- ubuntu-upgrade-linux-image-gcp
- ubuntu-upgrade-linux-image-gcp-lts-22-04
- ubuntu-upgrade-linux-image-generic
- ubuntu-upgrade-linux-image-generic-64k
- ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
- ubuntu-upgrade-linux-image-generic-hwe-20-04
- ubuntu-upgrade-linux-image-generic-lpae
- ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
- ubuntu-upgrade-linux-image-gke
- ubuntu-upgrade-linux-image-gke-5-15
- ubuntu-upgrade-linux-image-gkeop
- ubuntu-upgrade-linux-image-gkeop-5-15
- ubuntu-upgrade-linux-image-ibm
- ubuntu-upgrade-linux-image-kvm
- ubuntu-upgrade-linux-image-lowlatency
- ubuntu-upgrade-linux-image-lowlatency-64k
- ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04
- ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
- ubuntu-upgrade-linux-image-nvidia
- ubuntu-upgrade-linux-image-nvidia-lowlatency
- ubuntu-upgrade-linux-image-oem-20-04
- ubuntu-upgrade-linux-image-oem-20-04b
- ubuntu-upgrade-linux-image-oem-20-04c
- ubuntu-upgrade-linux-image-oem-20-04d
- ubuntu-upgrade-linux-image-oracle
- ubuntu-upgrade-linux-image-oracle-lts-22-04
- ubuntu-upgrade-linux-image-raspi
- ubuntu-upgrade-linux-image-raspi-nolpae
- ubuntu-upgrade-linux-image-virtual
- ubuntu-upgrade-linux-image-virtual-hwe-20-04
- ubuntu-upgrade-linux-image-xilinx-zynqmp
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