CVE-2021-47106
NoneCVSS
—
EPSS
0.2%
Published
Mar 4, 2024
CISA due date
—
Cloudanix analysis
A bug in Linux's network filtering code could let a local user crash the system or potentially run code with higher privileges.
- Exploitation
- Local Privilege
- Attacker needs
- Local User
- Complexity
- Moderate
- Impact
- Privilege Gain
- Component
- OS kernel
- Class
- Use After Free
- Remediation
- Upgrade
- Effort
- Medium
- Patch risk
- Low
What it actually does
Use-after-free read in nft_set_catchall_destroy() and nft_set_destroy() caused by accessing a catchall element after it has been freed via kfree_rcu() during nft_set destruction triggered by netlink events.
Why it matters to the business
Kernel memory corruption on Linux systems using nftables can lead to crashes, denial of service, or potential local privilege escalation, affecting network filtering and firewall functionality across servers and devices.
How an attack unfolds
An attacker sends crafted netlink messages to add set elements with catchall entries, then triggers table release via netlink notifier events, causing the iterator in nft_set_catchall_destroy to dereference freed memory after kfree_rcu.
How to fix it
Apply the upstream fix that replaces list_for_each_entry with list_for_each_entry_safe in nft_set_catchall_destroy; update to a kernel containing the resolution for CVE-2021-47106.
How to confirm the fix worked
Verify the presence of list_for_each_entry_safe in net/netfilter/nf_tables_api.c around nft_set_catchall_destroy; confirm no KASAN reports on set destruction paths after applying the patch.
Typical attack path
- Send nf_tables netlink batch to create set and insert catchall elements
- Trigger netlink release or table destruction via socket close or event
- nft_set_destroy walks catchall list without safe iterator
- Access freed object resulting in KASAN-detected use-after-free read
How to detect it
Review kernel logs for KASAN use-after-free reports mentioning nft_set_catchall_destroy, nft_set_destroy, or nf_tables_api.c; inspect netlink activity preceding crashes.
- nft_set_catchall_destroy net/netfilter/nf_tables_api.c
- BUG: KASAN: use-after-free in nft_set_destroy
- Read of size 8 at addr ffff8880
What your security team should do
- Prioritize kernel updates for all systems using nftables
- Monitor for nf_tables related kernel oops or KASAN reports
- Restrict unprivileged netlink access where possible until patched
The record
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nft_set_catchall_destroy() We need to use list_for_each_entry_safe() iterator because we can not access @catchall after kfree_rcu() call. syzbot reported: BUG: KASAN: use-after-free in nft_set_catchall_destroy net/netfilter/nf_tables_api.c:4486 [inline] BUG: KASAN: use-after-free in nft_set_destroy net/netfilter/nf_tables_api.c:4504 [inline] BUG: KASAN: use-after-free in nft_set_destroy+0x3fd/0x4f0 net/netfilter/nf_tables_api.c:4493 Read of size 8 at addr ffff8880716e5b80 by task syz-executor.3/8871 CPU: 1 PID: 8871 Comm: syz-executor.3 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x2ed mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 nft_set_catchall_destroy net/netfilter/nf_tables_api.c:4486 [inline] nft_set_destroy net/netfilter/nf_tables_api.c:4504 [inline] nft_set_destroy+0x3fd/0x4f0 net/netfilter/nf_tables_api.c:4493 __nft_release_table+0x79f/0xcd0 net/netfilter/nf_tables_api.c:9626 nft_rcv_nl_event+0x4f8/0x670 net/netfilter/nf_tables_api.c:9688 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 blocking_notifier_call_chain kernel/notifier.c:318 [inline] blocking_notifier_call_chain+0x67/0x90 kernel/notifier.c:306 netlink_release+0xcb6/0x1dd0 net/netlink/af_netlink.c:788 __sock_release+0xcd/0x280 net/socket.c:649 sock_close+0x18/0x20 net/socket.c:1314 __fput+0x286/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f75fbf28adb Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffd8da7ec10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f75fbf28adb RDX: 00007f75fc08e828 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007f75fc08a960 R08: 0000000000000000 R09: 00007f75fc08e830 R10: 00007ffd8da7ed10 R11: 0000000000000293 R12: 00000000002067c3 R13: 00007ffd8da7ed10 R14: 00007f75fc088f60 R15: 0000000000000032 </TASK> Allocated by task 8886: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] ____kasan_kmalloc mm/kasan/common.c:472 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:269 [inline] kmem_cache_alloc_trace+0x1ea/0x4a0 mm/slab.c:3575 kmalloc include/linux/slab.h:590 [inline] nft_setelem_catchall_insert net/netfilter/nf_tables_api.c:5544 [inline] nft_setelem_insert net/netfilter/nf_tables_api.c:5562 [inline] nft_add_set_elem+0x232e/0x2f40 net/netfilter/nf_tables_api.c:5936 nf_tables_newsetelem+0x6ff/0xbb0 net/netfilter/nf_tables_api.c:6032 nfnetlink_rcv_batch+0x1710/0x25f0 net/netfilter/nfnetlink.c:513 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:634 [inline] nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:652 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/ ---truncated---
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:12 | linux | 0 | 5.15.15-1 |
| Debian:13 | linux | 0 | 5.15.15-1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_19 | 0 | 1-150500.11.3.2 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_19 | 0 | 1-150500.11.3.2 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default-base | 0 | 5.14.21-150500.55.80.2.150500.6.35.6 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-rt | 0 | 5.14.21-150500.13.67.3 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source-rt | 0 | 5.14.21-150500.13.67.3 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-64kb | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-default-base | 0 | 5.14.21-150500.55.80.2.150500.6.35.6 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-zfcpdump | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-docs | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-obs-build | 0 | 5.14.21-150500.55.80.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-syms | 0 | 5.14.21-150500.55.80.1 |
| SUSE:Linux Enterprise Module for Legacy 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | kernel-azure | 0 | 5.14.21-150500.33.66.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | 0 | 5.14.21-150500.33.66.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | kernel-syms-azure | 0 | 5.14.21-150500.33.66.1 |
| SUSE:Linux Enterprise Workstation Extension 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.80.2 |
| SUSE:Real Time Module 15 SP5 | kernel-rt | 0 | 5.14.21-150500.13.67.3 |
| SUSE:Real Time Module 15 SP5 | kernel-rt_debug | 0 | 5.14.21-150500.13.67.3 |
| SUSE:Real Time Module 15 SP5 | kernel-source-rt | 0 | 5.14.21-150500.13.67.3 |
| SUSE:Real Time Module 15 SP5 | kernel-syms-rt | 0 | 5.14.21-150500.13.67.1 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:18.04:LTS | linux-aws-5.0 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-aws-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-edge | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gcp | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gke-5.4 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gkeop-5.4 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-hwe | 0 | No fix |
| Ubuntu:18.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oem | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 0 | No fix |
| Ubuntu:20.04:LTS | linux | 0 | 5.4.0-9.12 |
| Ubuntu:20.04:LTS | linux-aws | 0 | 5.4.0-1005.5 |
| Ubuntu:20.04:LTS | linux-aws-5.11 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-aws-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-aws-5.15 | 0 | 5.15.0-1014.18~20.04.1 |
| Ubuntu:20.04:LTS | linux-aws-5.8 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-azure | 0 | 5.4.0-1006.6 |
| Ubuntu:20.04:LTS | linux-azure-5.11 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-azure-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-azure-5.15 | 0 | 5.15.0-1007.8~20.04.1 |
| Ubuntu:20.04:LTS | linux-azure-5.8 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-azure-fde | 0 | No fix |
| Ubuntu:20.04:LTS | linux-azure-fde-5.15 | 0 | 5.15.0-1019.24~20.04.1.1 |
| Ubuntu:20.04:LTS | linux-bluefield | 0 | 5.4.0-1007.10 |
| Ubuntu:20.04:LTS | linux-gcp | 0 | 5.4.0-1005.5 |
| Ubuntu:20.04:LTS | linux-gcp-5.11 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gcp-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gcp-5.15 | 0 | 5.15.0-1006.9~20.04.1 |
| Ubuntu:20.04:LTS | linux-gcp-5.8 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gke | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gke-5.15 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gkeop | 0 | 5.4.0-1008.9 |
| Ubuntu:20.04:LTS | linux-gkeop-5.15 | 0 | 5.15.0-1003.5~20.04.2 |
| Ubuntu:20.04:LTS | linux-hwe-5.11 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-hwe-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-hwe-5.15 | 0 | 5.15.0-33.34~20.04.1 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-ibm | 0 | 5.4.0-1003.4 |
| Ubuntu:20.04:LTS | linux-ibm-5.15 | 0 | 5.15.0-1033.36~20.04.1 |
| Ubuntu:20.04:LTS | linux-intel-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-intel-iotg-5.15 | 0 | 5.15.0-1003.5~20.04.1 |
| Ubuntu:20.04:LTS | linux-iot | 0 | 5.4.0-1001.3 |
| Ubuntu:20.04:LTS | linux-kvm | 0 | 5.4.0-1004.4 |
| Ubuntu:20.04:LTS | linux-lowlatency-hwe-5.15 | 0 | 5.15.0-33.34~20.04.1 |
| Ubuntu:20.04:LTS | linux-oem-5.10 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-oem-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-oem-5.14 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-oem-5.6 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-oracle | 0 | 5.4.0-1005.5 |
| Ubuntu:20.04:LTS | linux-oracle-5.11 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-oracle-5.13 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-oracle-5.15 | 0 | 5.15.0-1007.9~20.04.1 |
| Ubuntu:20.04:LTS | linux-oracle-5.8 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-raspi | 0 | 5.4.0-1007.7 |
| Ubuntu:20.04:LTS | linux-raspi2 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-riscv | 0 | No fix |
| Ubuntu:20.04:LTS | linux-riscv-5.11 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-riscv-5.15 | 0 | 5.15.0-1015.17~20.04.1 |
| Ubuntu:20.04:LTS | linux-riscv-5.8 | 0 | No fix |
| Ubuntu:20.04:LTS | linux-xilinx-zynqmp | 0 | 5.4.0-1020.24 |
| Ubuntu:22.04:LTS | linux | 0 | 5.15.0-17.17 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-aws | 0 | 5.15.0-1002.4 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-aws-6.5 | 0 | 6.5.0-1008.8~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure | 0 | 5.15.0-1001.2 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-azure-6.5 | 0 | 6.5.0-1007.7~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure-fde | 0 | 5.15.0-1019.24.1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-gcp | 0 | 5.15.0-1001.3 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | 0 | 6.5.0-1010.10~22.04.3 |
| Ubuntu:22.04:LTS | linux-gke | 0 | 5.15.0-1002.2 |
| Ubuntu:22.04:LTS | linux-gkeop | 0 | 5.15.0-1001.2 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | 0 | 6.5.0-14.14~22.04.1 |
| Ubuntu:22.04:LTS | linux-ibm | 0 | 5.15.0-1002.2 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 0 | 5.15.0-1004.6 |
| Ubuntu:22.04:LTS | linux-kvm | 0 | 5.15.0-1002.2 |
| Ubuntu:22.04:LTS | linux-lowlatency | 0 | 5.15.0-22.22 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | 0 | 6.5.0-14.14.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia | 0 | 5.15.0-1005.5 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | 0 | 6.5.0-1004.4 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 0 | 6.8.0-1008.8~22.04.1 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-oem-6.5 | 0 | 6.5.0-1003.3 |
| Ubuntu:22.04:LTS | linux-oracle | 0 | 5.15.0-1001.3 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | 0 | 6.5.0-1013.13~22.04.4 |
| Ubuntu:22.04:LTS | linux-raspi | 0 | 5.15.0-1002.2 |
| Ubuntu:22.04:LTS | linux-riscv | 0 | No fix |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | 0 | 6.5.0-17.17.1.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | 0 | 6.5.0-1007.8~22.04.1 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 0 | 5.15.0-1022.26 |
| Ubuntu:24.04:LTS | linux | 0 | 6.5.0-9.9 |
| Ubuntu:24.04:LTS | linux-aws | 0 | 6.5.0-1008.8 |
| Ubuntu:24.04:LTS | linux-azure | 0 | 6.5.0-1007.7 |
| Ubuntu:24.04:LTS | linux-gcp | 0 | 6.5.0-1007.7 |
| Ubuntu:24.04:LTS | linux-gke | 0 | 6.8.0-1003.5 |
| Ubuntu:24.04:LTS | linux-gkeop | 0 | 6.8.0-1001.3 |
| Ubuntu:24.04:LTS | linux-ibm | 0 | 6.5.0-1009.9 |
| Ubuntu:24.04:LTS | linux-lowlatency | 0 | 6.5.0-9.9.1 |
| Ubuntu:24.04:LTS | linux-nvidia | 0 | 6.8.0-1007.7 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 0 | 6.8.0-1009.9.1 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | 0 | 6.8.0-1003.3 |
| Ubuntu:24.04:LTS | linux-oracle | 0 | 6.5.0-1010.10 |
| Ubuntu:24.04:LTS | linux-raspi | 0 | 6.5.0-1005.7 |
| Ubuntu:24.04:LTS | linux-riscv | 0 | 6.5.0-9.9.1 |
| Ubuntu:Pro:16.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-aws-5.0 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-aws-5.3 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-azure | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-azure-5.3 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-azure-edge | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-gcp | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-gcp-5.3 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-gke-4.15 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-gke-5.4 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-gkeop-5.4 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-hwe | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-oem | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-oracle-5.0 | 0 | No fix |
| Ubuntu:Pro:18.04:LTS | linux-oracle-5.3 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-aws-5.11 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-aws-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-aws-5.8 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-azure-5.11 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-azure-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-azure-5.8 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-azure-fde | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-gcp-5.11 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-gcp-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-gcp-5.8 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-gke | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-gke-5.15 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-hwe-5.11 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-hwe-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-hwe-5.8 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-intel-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oem-5.10 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oem-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oem-5.14 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oem-5.6 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oracle-5.11 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oracle-5.13 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-oracle-5.8 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-raspi2 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-riscv | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-riscv-5.11 | 0 | No fix |
| Ubuntu:Pro:20.04:LTS | linux-riscv-5.8 | 0 | No fix |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips | 0 | 4.15.0-2000.4 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-azure-fips | 0 | 4.15.0-1002.2 |
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