CVE-2021-47549
NoneCVSS
—
EPSS
0.2%
Published
May 24, 2024
CISA due date
—
Cloudanix analysis
A bug in how the Linux kernel cleans up a storage driver on certain systems can crash the whole machine when that driver is removed.
- Exploitation
- Local Privilege
- Attacker needs
- Local User
- Complexity
- Moderate
- Impact
- Denial Of Service
- Component
- OS kernel
- Class
- Use After Free
- Remediation
- Upgrade
- Effort
- Medium
- Patch risk
- Low
What it actually does
Use-after-free in sata_fsl driver: sata_fsl_remove performs iounmap and kfree on host_priv before ata_host_stop invokes sata_fsl_port_stop which still dereferences the unmapped hcr_base via ioread32.
Why it matters to the business
Kernel panic and system reboot when the sata_fsl module is unloaded on affected PowerPC systems, disrupting storage operations and availability.
How an attack unfolds
An attacker with local privileges executes rmmod sata_fsl, triggering the driver's remove routine that frees resources prematurely; subsequent port_stop callback in the libata teardown path then accesses the freed mapping, causing an oops.
How to fix it
Apply the upstream fix that moves iounmap/kfree into a new sata_fsl_host_stop callback bound to host_stop; update to a kernel containing the resolution for this driver ordering bug.
How to confirm the fix worked
Confirm the presence of sata_fsl_host_stop and its assignment to host_stop in the driver; verify that iounmap and kfree no longer occur inside sata_fsl_remove; test module load/unload cycle on target hardware.
Typical attack path
- Obtain local shell on PPC64 Linux system using sata_fsl
- Execute rmmod sata_fsl.ko or equivalent module unload
- Driver remove path calls iounmap and kfree on host_priv
- libata teardown later invokes port_stop which reads from unmapped address
- Kernel oops and potential crash
How to detect it
Review kernel logs for oops signatures containing ioread32 in sata_fsl_port_stop, free_irq followed by ata_host_stop, and references to sata_fsl_remove during module unload; correlate with audit logs showing rmmod of sata_fsl.
What your security team should do
- Prioritize kernel update on all PowerPC systems that may load sata_fsl
- Restrict local module unload privileges via modprobe blacklist or capabilities where feasible
- Monitor for unexpected sata_fsl module removal in production environments
The record
In the Linux kernel, the following vulnerability has been resolved: sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl When the `rmmod sata_fsl.ko` command is executed in the PPC64 GNU/Linux, a bug is reported: ================================================================== BUG: Unable to handle kernel data access on read at 0x80000800805b502c Oops: Kernel access of bad area, sig: 11 [#1] NIP [c0000000000388a4] .ioread32+0x4/0x20 LR [80000000000c6034] .sata_fsl_port_stop+0x44/0xe0 [sata_fsl] Call Trace: .free_irq+0x1c/0x4e0 (unreliable) .ata_host_stop+0x74/0xd0 [libata] .release_nodes+0x330/0x3f0 .device_release_driver_internal+0x178/0x2c0 .driver_detach+0x64/0xd0 .bus_remove_driver+0x70/0xf0 .driver_unregister+0x38/0x80 .platform_driver_unregister+0x14/0x30 .fsl_sata_driver_exit+0x18/0xa20 [sata_fsl] .__se_sys_delete_module+0x1ec/0x2d0 .system_call_exception+0xfc/0x1f0 system_call_common+0xf8/0x200 ================================================================== The triggering of the BUG is shown in the following stack: driver_detach device_release_driver_internal __device_release_driver drv->remove(dev) --> platform_drv_remove/platform_remove drv->remove(dev) --> sata_fsl_remove iounmap(host_priv->hcr_base); <---- unmap kfree(host_priv); <---- free devres_release_all release_nodes dr->node.release(dev, dr->data) --> ata_host_stop ap->ops->port_stop(ap) --> sata_fsl_port_stop ioread32(hcr_base + HCONTROL) <---- UAF host->ops->host_stop(host) The iounmap(host_priv->hcr_base) and kfree(host_priv) functions should not be executed in drv->remove. These functions should be executed in host_stop after port_stop. Therefore, we move these functions to the new function sata_fsl_host_stop and bind the new function to host_stop.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | linux | 0 | 5.10.84-1 |
| Debian:12 | linux | 0 | 5.15.15-1 |
| Debian:13 | linux | 0 | 5.15.15-1 |
| 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 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.164.1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP4 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Availability Extension 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.68.1 |
| 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 High Performance Computing 15 SP4-ESPOS | kernel-64kb | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-obs-build | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-syms | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-64kb | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-docs | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-obs-build | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-syms | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_60 | 0 | 1-8.3.1 |
| 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 Live Patching 15 SP4 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_27 | 0 | 1-150400.9.3.2 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_16 | 0 | 1-150500.11.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_15 | 0 | 1-150500.11.3.1 |
| 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 Micro 5.3 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-rt | 0 | 5.14.21-150400.15.82.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-source-rt | 0 | 5.14.21-150400.15.82.1 |
| SUSE:Linux Enterprise Micro 5.4 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Micro 5.4 | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Linux Enterprise Micro 5.4 | kernel-rt | 0 | 5.14.21-150400.15.82.1 |
| SUSE:Linux Enterprise Micro 5.4 | kernel-source-rt | 0 | 5.14.21-150400.15.82.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default-base | 0 | 5.14.21-150500.55.68.1.150500.6.31.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-rt | 0 | 5.14.21-150500.13.58.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source-rt | 0 | 5.14.21-150500.13.58.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-64kb | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-default-base | 0 | 5.14.21-150500.55.68.1.150500.6.31.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | kernel-zfcpdump | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-docs | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-obs-build | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP5 | kernel-syms | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Legacy 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | kernel-azure | 0 | 5.14.21-150500.33.57.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | 0 | 5.14.21-150500.33.57.1 |
| SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | kernel-syms-azure | 0 | 5.14.21-150500.33.57.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-rt | 0 | 4.12.14-10.200.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-rt_debug | 0 | 4.12.14-10.200.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-source-rt | 0 | 4.12.14-10.200.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-syms-rt | 0 | 4.12.14-10.200.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-azure | 0 | 4.12.14-16.197.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-default | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-source | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-source-azure | 0 | 4.12.14-16.197.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-syms | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-syms-azure | 0 | 4.12.14-16.197.1 |
| 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 15 SP4-LTSS | kernel-64kb | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-docs | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-obs-build | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-source | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-syms | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-zfcpdump | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-azure | 0 | 4.12.14-16.197.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | 0 | 4.12.14-16.197.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-syms | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-syms-azure | 0 | 4.12.14-16.197.1 |
| 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 Server for SAP Applications 15 SP4 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | kernel-docs | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | kernel-obs-build | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | kernel-syms | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | kernel-docs | 0 | 4.12.14-122.228.2 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | kernel-obs-build | 0 | 4.12.14-122.228.2 |
| SUSE:Linux Enterprise Workstation Extension 12 SP5 | kernel-default | 0 | 4.12.14-122.228.1 |
| SUSE:Linux Enterprise Workstation Extension 15 SP5 | kernel-default | 0 | 5.14.21-150500.55.68.1 |
| SUSE:Manager Proxy 4.3 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Manager Proxy 4.3 | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Manager Proxy 4.3 | kernel-source | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Manager Proxy 4.3 | kernel-syms | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Manager Server 4.3 | kernel-default | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Manager Server 4.3 | kernel-default-base | 0 | 5.14.21-150400.24.122.2.150400.24.58.2 |
| SUSE:Manager Server 4.3 | kernel-source | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Manager Server 4.3 | kernel-syms | 0 | 5.14.21-150400.24.122.1 |
| SUSE:Manager Server 4.3 | kernel-zfcpdump | 0 | 5.14.21-150400.24.122.2 |
| SUSE:Real Time Module 15 SP5 | kernel-rt | 0 | 5.14.21-150500.13.58.1 |
| SUSE:Real Time Module 15 SP5 | kernel-rt_debug | 0 | 5.14.21-150500.13.58.1 |
| SUSE:Real Time Module 15 SP5 | kernel-source-rt | 0 | 5.14.21-150500.13.58.1 |
| SUSE:Real Time Module 15 SP5 | kernel-syms-rt | 0 | 5.14.21-150500.13.58.1 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:18.04:LTS | linux | 0 | 4.15.0-169.177 |
| Ubuntu:18.04:LTS | linux-aws | 0 | 4.15.0-1121.129 |
| 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 | 5.4.0-1066.69~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 0 | 4.15.0-1131.144 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-5.4 | 0 | 5.4.0-1070.73~18.04.1 |
| 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 | 4.15.0-1116.130 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gcp-5.4 | 0 | 5.4.0-1065.69~18.04.1 |
| 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 | 5.4.0-100.113~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:18.04:LTS | linux-ibm-5.4 | 0 | 5.4.0-1015.16~18.04.1 |
| Ubuntu:18.04:LTS | linux-kvm | 0 | 4.15.0-1107.109 |
| Ubuntu:18.04:LTS | linux-oem | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle | 0 | 4.15.0-1087.95 |
| 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 | 5.4.0-1064.68~18.04.1 |
| Ubuntu:18.04:LTS | linux-raspi-5.4 | 0 | 5.4.0-1053.60~18.04.1 |
| Ubuntu:20.04:LTS | linux | 0 | No fix |
| Ubuntu:20.04:LTS | linux | 0 | 5.4.0-100.113 |
| Ubuntu:20.04:LTS | linux-aws | 0 | No fix |
| Ubuntu:20.04:LTS | linux-aws | 0 | 5.4.0-1066.69 |
| 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 | 5.4.0-1070.73 |
| 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 | 5.4.0-1028.31 |
| Ubuntu:20.04:LTS | linux-gcp | 0 | No fix |
| Ubuntu:20.04:LTS | linux-gcp | 0 | 5.4.0-1065.69 |
| 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 | 5.4.0-1034.35 |
| Ubuntu:20.04:LTS | linux-gkeop-5.15 | 0 | 5.15.0-1003.5~20.04.2 |
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