CVE-2021-47274
Critical · 9.8CVSS
9.8
EPSS
0.8%
Published
May 21, 2024
CISA due date
—
Cloudanix analysis
A bug in the Linux kernel's tracing code can let certain internal operations write outside their allowed memory area, causing the whole system to crash.
- Exploitation
- Remote Unauthenticated
- Attacker needs
- None
- Complexity
- Low
- Impact
- Full Compromise
- Component
- OS kernel
- Class
- Memory Corruption
- Remediation
- Upgrade
- Effort
- Medium
- Patch risk
- Low
What it actually does
Incorrect length validation in the ftrace filter buffer allows an out-of-bounds write because the check omits the space required by entry->array[0], enabling memory corruption when trace data is fetched via kprobes or similar mechanisms.
Why it matters to the business
Kernel crashes and memory corruption can produce sudden system reboots, loss of service availability, and potential data integrity issues on production Linux hosts running affected kernels.
How an attack unfolds
An attacker or malicious workload triggers kprobe or ftrace events that call fetch_deref_string or similar helpers; the missing length accounting permits strncpy_from_unsafe to write past the allocated buffer, corrupting adjacent kernel structures and leading to general protection faults during subsequent allocations or syscalls.
How to fix it
Apply the upstream fix that includes the length check accounting for sizeof(entry->array[0]) (commit b220c049d519) and update to a patched kernel release; reboot after installation and verify the tracing buffer handling change.
How to confirm the fix worked
Confirm the corrected length check is present in the kernel source or running binary; reproduce the original out-of-bounds condition in a test environment and verify it no longer occurs; monitor for absence of related page-fault or kmem_cache crashes after upgrade.
Typical attack path
- Enable or attach kprobe/ftrace instrumentation on target functions
- Supply or generate trace data whose encoded length exceeds the checked buffer size minus the array header
- Trigger the unsafe string fetch path during event handling
- Observe resulting out-of-bounds write and subsequent kernel faults or crashes
How to detect it
Search kernel logs and crash dumps for page faults or general protection faults originating from strncpy_from_unsafe, fetch_memory_string, kprobe_trace_func, or kmem_cache_alloc during ftrace/kprobe activity; correlate with munmap or syscall traces.
- BUG: Out-of-bounds write at addr
- strncpy_from_unsafe+0x66
- fetch_deref_string+0x51
- kprobe_ftrace_handler
- general protection fault.*kmem_cache_alloc
What your security team should do
- Prioritize kernel updates on all exposed Linux systems within the next maintenance window
- Enable kernel crash-dump collection and review recent oops logs for tracing-related faults
- Restrict unprivileged use of ftrace and kprobe interfaces where feasible until patches are applied
The record
In the Linux kernel, the following vulnerability has been resolved: tracing: Correct the length check which causes memory corruption We've suffered from severe kernel crashes due to memory corruption on our production environment, like, Call Trace: [1640542.554277] general protection fault: 0000 [#1] SMP PTI [1640542.554856] CPU: 17 PID: 26996 Comm: python Kdump: loaded Tainted:G [1640542.556629] RIP: 0010:kmem_cache_alloc+0x90/0x190 [1640542.559074] RSP: 0018:ffffb16faa597df8 EFLAGS: 00010286 [1640542.559587] RAX: 0000000000000000 RBX: 0000000000400200 RCX: 0000000006e931bf [1640542.560323] RDX: 0000000006e931be RSI: 0000000000400200 RDI: ffff9a45ff004300 [1640542.560996] RBP: 0000000000400200 R08: 0000000000023420 R09: 0000000000000000 [1640542.561670] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff9a20608d [1640542.562366] R13: ffff9a45ff004300 R14: ffff9a45ff004300 R15: 696c662f65636976 [1640542.563128] FS: 00007f45d7c6f740(0000) GS:ffff9a45ff840000(0000) knlGS:0000000000000000 [1640542.563937] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1640542.564557] CR2: 00007f45d71311a0 CR3: 000000189d63e004 CR4: 00000000003606e0 [1640542.565279] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [1640542.566069] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [1640542.566742] Call Trace: [1640542.567009] anon_vma_clone+0x5d/0x170 [1640542.567417] __split_vma+0x91/0x1a0 [1640542.567777] do_munmap+0x2c6/0x320 [1640542.568128] vm_munmap+0x54/0x70 [1640542.569990] __x64_sys_munmap+0x22/0x30 [1640542.572005] do_syscall_64+0x5b/0x1b0 [1640542.573724] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [1640542.575642] RIP: 0033:0x7f45d6e61e27 James Wang has reproduced it stably on the latest 4.19 LTS. After some debugging, we finally proved that it's due to ftrace buffer out-of-bound access using a debug tool as follows: [ 86.775200] BUG: Out-of-bounds write at addr 0xffff88aefe8b7000 [ 86.780806] no_context+0xdf/0x3c0 [ 86.784327] __do_page_fault+0x252/0x470 [ 86.788367] do_page_fault+0x32/0x140 [ 86.792145] page_fault+0x1e/0x30 [ 86.795576] strncpy_from_unsafe+0x66/0xb0 [ 86.799789] fetch_memory_string+0x25/0x40 [ 86.804002] fetch_deref_string+0x51/0x60 [ 86.808134] kprobe_trace_func+0x32d/0x3a0 [ 86.812347] kprobe_dispatcher+0x45/0x50 [ 86.816385] kprobe_ftrace_handler+0x90/0xf0 [ 86.820779] ftrace_ops_assist_func+0xa1/0x140 [ 86.825340] 0xffffffffc00750bf [ 86.828603] do_sys_open+0x5/0x1f0 [ 86.832124] do_syscall_64+0x5b/0x1b0 [ 86.835900] entry_SYSCALL_64_after_hwframe+0x44/0xa9 commit b220c049d519 ("tracing: Check length before giving out the filter buffer") adds length check to protect trace data overflow introduced in 0fc1b09ff1ff, seems that this fix can't prevent overflow entirely, the length check should also take the sizeof entry->array[0] into account, since this array[0] is filled the length of trace data and occupy addtional space and risk overflow.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | linux | 0 | 5.10.46-1 |
| Debian:12 | linux | 0 | 5.10.46-1 |
| Debian:13 | linux | 0 | 5.10.46-1 |
| SUSE:Enterprise Storage 7.1 | kernel-64kb | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Enterprise Storage 7.1 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Enterprise Storage 7.1 | kernel-default-base | 0 | 5.3.18-150300.59.164.1.150300.18.96.1 |
| SUSE:Enterprise Storage 7.1 | kernel-docs | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Enterprise Storage 7.1 | kernel-obs-build | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Enterprise Storage 7.1 | kernel-preempt | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Enterprise Storage 7.1 | kernel-source | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Enterprise Storage 7.1 | kernel-syms | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Availability Extension 12 SP5 | kernel-default | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP2 | kernel-default | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default-base | 0 | 5.3.18-150200.24.194.1.150200.9.99.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-docs | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-obs-build | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-preempt | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-syms | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | 0 | 5.3.18-150300.59.164.1.150300.18.96.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_57 | 0 | 1-8.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP2 | kernel-default | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_49 | 0 | 1-150200.5.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_45 | 0 | 1-150300.7.3.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-default-base | 0 | 5.3.18-150300.59.164.1.150300.18.96.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-rt | 0 | 5.3.18-150300.172.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-source-rt | 0 | 5.3.18-150300.172.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default-base | 0 | 5.3.18-150300.59.164.1.150300.18.96.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-rt | 0 | 5.3.18-150300.172.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-source-rt | 0 | 5.3.18-150300.172.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-rt | 0 | 4.12.14-10.188.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-rt_debug | 0 | 4.12.14-10.188.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-source-rt | 0 | 4.12.14-10.188.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-syms-rt | 0 | 4.12.14-10.188.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-azure | 0 | 4.12.14-16.188.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-default | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-source | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-source-azure | 0 | 4.12.14-16.188.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-syms | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-syms-azure | 0 | 4.12.14-16.188.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-default | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-default-base | 0 | 5.3.18-150200.24.194.1.150200.9.99.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-docs | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-obs-build | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-preempt | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-source | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-syms | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-64kb | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-default-base | 0 | 5.3.18-150300.59.164.1.150300.18.96.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-docs | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-obs-build | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-preempt | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-source | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-syms | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-zfcpdump | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-azure | 0 | 4.12.14-16.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | 0 | 4.12.14-16.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-syms | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-syms-azure | 0 | 4.12.14-16.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default-base | 0 | 5.3.18-150200.24.194.1.150200.9.99.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-docs | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-obs-build | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-preempt | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-syms | 0 | 5.3.18-150200.24.194.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default-base | 0 | 5.3.18-150300.59.164.1.150300.18.96.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-docs | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-obs-build | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-preempt | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-syms | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | kernel-docs | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | kernel-obs-build | 0 | 4.12.14-122.219.1 |
| SUSE:Linux Enterprise Workstation Extension 12 SP5 | kernel-default | 0 | 4.12.14-122.219.1 |
| Ubuntu:14.04:LTS | linux | 0 | 3.11.0-12.19 |
| Ubuntu:14.04:LTS | linux-aws | 0 | 4.4.0-1002.2 |
| Ubuntu:14.04:LTS | linux-azure | 0 | 4.15.0-1023.24~14.04.1 |
| Ubuntu:14.04:LTS | linux-lts-xenial | 0 | 4.4.0-13.29~14.04.1 |
| Ubuntu:16.04:LTS | linux | 0 | 4.4.0-2.16 |
| Ubuntu:16.04:LTS | linux-aws | 0 | 4.4.0-1001.10 |
| Ubuntu:16.04:LTS | linux-aws-hwe | 0 | 4.15.0-1030.31~16.04.1 |
| Ubuntu:16.04:LTS | linux-azure | 0 | 4.11.0-1009.9 |
| Ubuntu:16.04:LTS | linux-gcp | 0 | 4.10.0-1004.4 |
| Ubuntu:16.04:LTS | linux-hwe | 0 | 4.8.0-39.42~16.04.1 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:16.04:LTS | linux-kvm | 0 | 4.4.0-1004.9 |
| Ubuntu:16.04:LTS | linux-oracle | 0 | 4.15.0-1007.9~16.04.1 |
| Ubuntu:18.04:LTS | linux | 0 | 4.15.0-156.163 |
| Ubuntu:18.04:LTS | linux-aws | 0 | 4.15.0-1111.118 |
| 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-aws-5.4 | 0 | 5.4.0-1055.58~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 0 | 4.15.0-1123.136 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-5.4 | 0 | 5.4.0-1056.58~18.04.1 |
| 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-4.15 | 0 | 4.15.0-1108.122 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gcp-5.4 | 0 | 5.4.0-1051.55~18.04.1 |
| 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-5.4 | 0 | 5.4.0-81.91~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge | 0 | 5.0.0-15.16~18.04.1 |
| Ubuntu:18.04:LTS | linux-ibm-5.4 | 0 | 5.4.0-1010.11~18.04.2 |
| Ubuntu:18.04:LTS | linux-kvm | 0 | 4.15.0-1099.101 |
| Ubuntu:18.04:LTS | linux-oem | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle | 0 | 4.15.0-1080.88 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle-5.4 | 0 | 5.4.0-1053.57~18.04.1 |
| Ubuntu:18.04:LTS | linux-raspi-5.4 | 0 | 5.4.0-1042.46~18.04.3 |
| Ubuntu:20.04:LTS | linux | 0 | No fix |
| Ubuntu:20.04:LTS | linux | 0 | 5.4.0-81.91 |
| Ubuntu:20.04:LTS | linux-aws | 0 | No fix |
| Ubuntu:20.04:LTS | linux-aws | 0 | 5.4.0-1055.58 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-azure | 0 | 5.4.0-1056.58 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-bluefield | 0 | 5.4.0-1019.22 |
| Ubuntu:20.04:LTS | linux-gcp | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gcp | 0 | 5.4.0-1051.55 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-gkeop | 0 | 5.4.0-1022.23 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-kvm | 0 | 5.4.0-1045.47 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-oracle | 0 | 5.4.0-1053.57 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-raspi | 0 | 5.4.0-1042.46 |
| 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 | 5.13.0-19.19 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | 0 | No fix |
| Ubuntu:22.04:LTS | linux-aws | 0 | 5.13.0-1005.6 |
| 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-aws-6.8 | 0 | 6.8.0-1009.9~22.04.2 |
| Ubuntu:22.04:LTS | linux-azure | 0 | 5.13.0-1006.7 |
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