CVE-2021-46938
High · 7.8CVSS
7.8
EPSS
0.2%
Published
Feb 27, 2024
CISA due date
—
Cloudanix analysis
A bug in the Linux kernel's handling of certain storage devices can cause the whole system to crash if device setup fails and the device is later removed.
- Exploitation
- Local Privilege
- Attacker needs
- Low Privilege
- Complexity
- Low
- Impact
- Denial Of Service
- Component
- OS kernel
- Class
- Memory Corruption
- Remediation
- Patch
- Effort
- Medium
- Patch risk
- Low
What it actually does
Double-free of blk_mq_tag_set pointer in device-mapper request-queue initialization path when table load fails, leading to use-after-free and kernel memory corruption on subsequent device removal.
Why it matters to the business
Local users or automated tools can trigger kernel oops and panic on systems using request-based device-mapper targets, causing denial of service and potential data loss or service disruption on Linux hosts.
How an attack unfolds
An attacker with local access issues a device-mapper ioctl to load a request-based table that intentionally or accidentally fails blk_mq_tag_set allocation; the error path frees the structure but leaves a dangling pointer. A later device removal ioctl then calls cleanup which dereferences and frees the pointer again, resulting in kernel panic.
How to fix it
Apply the upstream fix that sets the blk_mq_tag_set pointer to NULL after error-path free in dm_mq_init_request_queue and also in dm_mq_cleanup_mapped_device; update to a Linux kernel containing commit resolving CVE-2021-46938.
How to confirm the fix worked
Confirm the pointer is cleared to NULL on allocation failure paths via source review or kernel debug; test table-load failure followed by device removal no longer produces double-free oops.
Typical attack path
- Obtain local shell or process with privileges to issue DM ioctls
- Craft or trigger a dm table load for a request-based mapped device that causes blk_mq_tag_set init to fail
- Issue device removal ioctl on the partially-created device
- Kernel executes double-free path in dm_mq_cleanup_mapped_device leading to oops/panic
How to detect it
Search kernel logs and dmesg for the exact strings emitted during the failing table load and the subsequent double-free oops; inspect call traces containing dm_mq_cleanup_mapped_device, blk_mq_free_tag_set and kfree.
- device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device
- device-mapper: ioctl: unable to set up device queue for new table
- dm_mq_cleanup_mapped_device
- blk_mq_free_tag_set
- Unable to handle kernel pointer dereference in virtual kernel address space
What your security team should do
- Prioritize kernel updates on all systems exposing device-mapper request-based targets to untrusted local users
- Restrict unprivileged access to DM ioctls via LSM or device permissions where feasible
- Monitor for kernel oops containing dm_mq_cleanup_mapped_device and blk_mq_free_tag_set in production workloads
The record
In the Linux kernel, the following vulnerability has been resolved: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails When loading a device-mapper table for a request-based mapped device, and the allocation/initialization of the blk_mq_tag_set for the device fails, a following device remove will cause a double free. E.g. (dmesg): device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device device-mapper: ioctl: unable to set up device queue for new table. Unable to handle kernel pointer dereference in virtual kernel address space Failing address: 0305e098835de000 TEID: 0305e098835de803 Fault in home space mode while using kernel ASCE. AS:000000025efe0007 R3:0000000000000024 Oops: 0038 ilc:3 [#1] SMP Modules linked in: ... lots of modules ... Supported: Yes, External CPU: 0 PID: 7348 Comm: multipathd Kdump: loaded Tainted: G W X 5.3.18-53-default #1 SLE15-SP3 Hardware name: IBM 8561 T01 7I2 (LPAR) Krnl PSW : 0704e00180000000 000000025e368eca (kfree+0x42/0x330) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3 Krnl GPRS: 000000000000004a 000000025efe5230 c1773200d779968d 0000000000000000 000000025e520270 000000025e8d1b40 0000000000000003 00000007aae10000 000000025e5202a2 0000000000000001 c1773200d779968d 0305e098835de640 00000007a8170000 000003ff80138650 000000025e5202a2 000003e00396faa8 Krnl Code: 000000025e368eb8: c4180041e100 lgrl %r1,25eba50b8 000000025e368ebe: ecba06b93a55 risbg %r11,%r10,6,185,58 #000000025e368ec4: e3b010000008 ag %r11,0(%r1) >000000025e368eca: e310b0080004 lg %r1,8(%r11) 000000025e368ed0: a7110001 tmll %r1,1 000000025e368ed4: a7740129 brc 7,25e369126 000000025e368ed8: e320b0080004 lg %r2,8(%r11) 000000025e368ede: b904001b lgr %r1,%r11 Call Trace: [<000000025e368eca>] kfree+0x42/0x330 [<000000025e5202a2>] blk_mq_free_tag_set+0x72/0xb8 [<000003ff801316a8>] dm_mq_cleanup_mapped_device+0x38/0x50 [dm_mod] [<000003ff80120082>] free_dev+0x52/0xd0 [dm_mod] [<000003ff801233f0>] __dm_destroy+0x150/0x1d0 [dm_mod] [<000003ff8012bb9a>] dev_remove+0x162/0x1c0 [dm_mod] [<000003ff8012a988>] ctl_ioctl+0x198/0x478 [dm_mod] [<000003ff8012ac8a>] dm_ctl_ioctl+0x22/0x38 [dm_mod] [<000000025e3b11ee>] ksys_ioctl+0xbe/0xe0 [<000000025e3b127a>] __s390x_sys_ioctl+0x2a/0x40 [<000000025e8c15ac>] system_call+0xd8/0x2c8 Last Breaking-Event-Address: [<000000025e52029c>] blk_mq_free_tag_set+0x6c/0xb8 Kernel panic - not syncing: Fatal exception: panic_on_oops When allocation/initialization of the blk_mq_tag_set fails in dm_mq_init_request_queue(), it is uninitialized/freed, but the pointer is not reset to NULL; so when dev_remove() later gets into dm_mq_cleanup_mapped_device() it sees the pointer and tries to uninitialize and free it again. Fix this by setting the pointer to NULL in dm_mq_init_request_queue() error-handling. Also set it to NULL in dm_mq_cleanup_mapped_device().
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | linux | 0 | 5.10.38-1 |
| Debian:12 | linux | 0 | 5.10.38-1 |
| Debian:13 | linux | 0 | 5.10.38-1 |
| SUSE:Enterprise Storage 7.1 | kernel-64kb | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Enterprise Storage 7.1 | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Enterprise Storage 7.1 | kernel-default-base | 0 | 5.3.18-150300.59.158.1.150300.18.92.5 |
| SUSE:Enterprise Storage 7.1 | kernel-docs | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Enterprise Storage 7.1 | kernel-obs-build | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Enterprise Storage 7.1 | kernel-preempt | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Enterprise Storage 7.1 | kernel-source | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Enterprise Storage 7.1 | kernel-syms | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Availability Extension 12 SP5 | kernel-default | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP2 | kernel-default | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Availability Extension 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default-base | 0 | 5.3.18-150200.24.188.1.150200.9.95.3 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-docs | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-obs-build | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-preempt | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-syms | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | 0 | 5.3.18-150300.59.158.1.150300.18.92.5 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_56 | 0 | 1-8.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP2 | kernel-default | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_47 | 0 | 1-150200.5.3.3 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_43 | 0 | 1-150300.7.3.5 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-default-base | 0 | 5.3.18-150300.59.158.1.150300.18.92.5 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-rt | 0 | 5.3.18-150300.166.1 |
| SUSE:Linux Enterprise Micro 5.1 | kernel-source-rt | 0 | 5.3.18-150300.166.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default-base | 0 | 5.3.18-150300.59.158.1.150300.18.92.5 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-rt | 0 | 5.3.18-150300.166.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-source-rt | 0 | 5.3.18-150300.166.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-rt | 0 | 4.12.14-10.182.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-rt_debug | 0 | 4.12.14-10.182.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-source-rt | 0 | 4.12.14-10.182.1 |
| SUSE:Linux Enterprise Real Time 12 SP5 | kernel-syms-rt | 0 | 4.12.14-10.182.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-azure | 0 | 4.12.14-16.182.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-default | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-source | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-source-azure | 0 | 4.12.14-16.182.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-syms | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Server 12 SP5 | kernel-syms-azure | 0 | 4.12.14-16.182.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-default | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-default-base | 0 | 5.3.18-150200.24.188.1.150200.9.95.3 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-docs | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-obs-build | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-preempt | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-source | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server 15 SP2-LTSS | kernel-syms | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-64kb | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-default-base | 0 | 5.3.18-150300.59.158.1.150300.18.92.5 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-docs | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-obs-build | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-preempt | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-source | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-syms | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | kernel-zfcpdump | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-azure | 0 | 4.12.14-16.182.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source-azure | 0 | 4.12.14-16.182.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-syms | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | kernel-syms-azure | 0 | 4.12.14-16.182.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default-base | 0 | 5.3.18-150200.24.188.1.150200.9.95.3 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-docs | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-obs-build | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-preempt | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | kernel-syms | 0 | 5.3.18-150200.24.188.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default-base | 0 | 5.3.18-150300.59.158.1.150300.18.92.5 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-docs | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-obs-build | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-preempt | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | kernel-syms | 0 | 5.3.18-150300.59.158.1 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | kernel-docs | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | kernel-obs-build | 0 | 4.12.14-122.216.1 |
| SUSE:Linux Enterprise Workstation Extension 12 SP5 | kernel-default | 0 | 4.12.14-122.216.1 |
| 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-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-hwe-edge | 0 | No fix |
| Ubuntu:16.04:LTS | linux-kvm | 0 | 4.4.0-1004.9 |
| Ubuntu:18.04:LTS | linux | 0 | 4.15.0-151.157 |
| Ubuntu:18.04:LTS | linux-aws | 0 | 4.15.0-1109.116 |
| 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 | 5.4.0-1051.53~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 0 | 4.15.0-1121.134 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-5.4 | 0 | 5.4.0-1051.53~18.04.1 |
| 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 | 4.15.0-1106.120 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gcp-5.4 | 0 | 5.4.0-1046.49~18.04.1 |
| 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 | 5.4.0-77.86~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge | 0 | No fix |
| Ubuntu:18.04:LTS | linux-ibm-5.4 | 0 | 5.4.0-1010.11~18.04.2 |
| Ubuntu:18.04:LTS | linux-kvm | 0 | 4.15.0-1097.99 |
| Ubuntu:18.04:LTS | linux-oem | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle | 0 | 4.15.0-1078.86 |
| 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 | 5.4.0-1048.52~18.04.1 |
| Ubuntu:18.04:LTS | linux-raspi-5.4 | 0 | 5.4.0-1038.41~18.04.1 |
| Ubuntu:20.04:LTS | linux | 0 | 5.4.0-77.86 |
| Ubuntu:20.04:LTS | linux-aws | 0 | 5.4.0-1051.53 |
| 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 | 5.4.0-1051.53 |
| 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 | 5.4.0-1013.16 |
| Ubuntu:20.04:LTS | linux-gcp | 0 | 5.4.0-1046.49 |
| 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 | 5.4.0-1018.19 |
| 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 | 5.4.0-1041.42 |
| 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 | 5.4.0-1048.52 |
| 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 | 5.4.0-1038.41 |
| 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 |
| 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-6.8 | 0 | 6.8.0-1008.8~22.04.1 |
| 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 | 5.13.0-1005.6 |
| 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-gcp-6.8 | 0 | 6.8.0-1010.11~22.04.1 |
| 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 |
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