CVE-2021-47302
NoneCVSS
—
EPSS
0.2%
Published
May 21, 2024
CISA due date
—
Cloudanix analysis
A bug in the Linux kernel driver for certain Intel network cards can let attackers crash the whole system by interfering with network resets.
- 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 the igc Ethernet driver caused by failure to clear next_to_watch during TX ring cleanup, allowing igc_poll to free an skb that was already freed when a reset races with the poll path.
Why it matters to the business
Systems using Intel I225/I226 controllers can experience kernel panics, network instability, or denial of service during interface resets, increasing downtime risk on affected Linux hosts.
How an attack unfolds
An attacker with the ability to trigger network resets or control traffic races the igc_poll function against controller reset, causing the driver to attempt a double-free of an skb and trigger the refcount underflow warning.
How to fix it
Apply the upstream kernel patch that clears next_to_watch when cleaning the TX ring in the igc driver; rebuild and deploy the fixed kernel image.
How to confirm the fix worked
Confirm the fix by inspecting the igc_clean_tx_ring function for the next_to_watch = NULL assignment and reproduce reset scenarios without triggering the refcount underflow warning.
Typical attack path
- Trigger reset of the igc network interface
- Ensure igc_poll is executing concurrently
- Force the driver to process a stale next_to_watch descriptor
- Cause attempt to free already-freed skb
How to detect it
Search kernel logs for the exact refcount underflow warning followed by a call trace containing igc_poll and sock_wfree on systems that load the igc module.
- refcount_t: underflow; use-after-free
- igc_poll+0xb7/0xc80 [igc]
- WARNING: CPU.*at lib/refcount.c:28 refcount_warn_saturate
What your security team should do
- Prioritize kernel updates for hosts using igc hardware
- Add monitoring for refcount underflow messages tied to igc_poll
- Temporarily disable the interface or isolate systems until patched if high availability is required
The record
In the Linux kernel, the following vulnerability has been resolved: igc: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igc_poll() runs while the controller is being reset this can lead to the driver try to free a skb that was already freed. Log message: [ 101.525242] refcount_t: underflow; use-after-free. [ 101.525251] WARNING: CPU: 1 PID: 646 at lib/refcount.c:28 refcount_warn_saturate+0xab/0xf0 [ 101.525259] Modules linked in: sch_etf(E) sch_mqprio(E) rfkill(E) intel_rapl_msr(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) binfmt_misc(E) kvm_intel(E) kvm(E) irqbypass(E) crc32_pclmul(E) ghash_clmulni_intel(E) aesni_intel(E) mei_wdt(E) libaes(E) crypto_simd(E) cryptd(E) glue_helper(E) snd_hda_codec_hdmi(E) rapl(E) intel_cstate(E) snd_hda_intel(E) snd_intel_dspcfg(E) sg(E) soundwire_intel(E) intel_uncore(E) at24(E) soundwire_generic_allocation(E) iTCO_wdt(E) soundwire_cadence(E) intel_pmc_bxt(E) serio_raw(E) snd_hda_codec(E) iTCO_vendor_support(E) watchdog(E) snd_hda_core(E) snd_hwdep(E) snd_soc_core(E) snd_compress(E) snd_pcsp(E) soundwire_bus(E) snd_pcm(E) evdev(E) snd_timer(E) mei_me(E) snd(E) soundcore(E) mei(E) configfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc32c_generic(E) crc16(E) mbcache(E) jbd2(E) sd_mod(E) t10_pi(E) crc_t10dif(E) crct10dif_generic(E) i915(E) ahci(E) libahci(E) ehci_pci(E) igb(E) xhci_pci(E) ehci_hcd(E) [ 101.525303] drm_kms_helper(E) dca(E) xhci_hcd(E) libata(E) crct10dif_pclmul(E) cec(E) crct10dif_common(E) tsn(E) igc(E) e1000e(E) ptp(E) i2c_i801(E) crc32c_intel(E) psmouse(E) i2c_algo_bit(E) i2c_smbus(E) scsi_mod(E) lpc_ich(E) pps_core(E) usbcore(E) drm(E) button(E) video(E) [ 101.525318] CPU: 1 PID: 646 Comm: irq/37-enp7s0-T Tainted: G E 5.10.30-rt37-tsn1-rt-ipipe #ipipe [ 101.525320] Hardware name: SIEMENS AG SIMATIC IPC427D/A5E31233588, BIOS V17.02.09 03/31/2017 [ 101.525322] RIP: 0010:refcount_warn_saturate+0xab/0xf0 [ 101.525325] Code: 05 31 48 44 01 01 e8 f0 c6 42 00 0f 0b c3 80 3d 1f 48 44 01 00 75 90 48 c7 c7 78 a8 f3 a6 c6 05 0f 48 44 01 01 e8 d1 c6 42 00 <0f> 0b c3 80 3d fe 47 44 01 00 0f 85 6d ff ff ff 48 c7 c7 d0 a8 f3 [ 101.525327] RSP: 0018:ffffbdedc0917cb8 EFLAGS: 00010286 [ 101.525329] RAX: 0000000000000000 RBX: ffff98fd6becbf40 RCX: 0000000000000001 [ 101.525330] RDX: 0000000000000001 RSI: ffffffffa6f2700c RDI: 00000000ffffffff [ 101.525332] RBP: ffff98fd6becc14c R08: ffffffffa7463d00 R09: ffffbdedc0917c50 [ 101.525333] R10: ffffffffa74c3578 R11: 0000000000000034 R12: 00000000ffffff00 [ 101.525335] R13: ffff98fd6b0b1000 R14: 0000000000000039 R15: ffff98fd6be35c40 [ 101.525337] FS: 0000000000000000(0000) GS:ffff98fd6e240000(0000) knlGS:0000000000000000 [ 101.525339] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.525341] CR2: 00007f34135a3a70 CR3: 0000000150210003 CR4: 00000000001706e0 [ 101.525343] Call Trace: [ 101.525346] sock_wfree+0x9c/0xa0 [ 101.525353] unix_destruct_scm+0x7b/0xa0 [ 101.525358] skb_release_head_state+0x40/0x90 [ 101.525362] skb_release_all+0xe/0x30 [ 101.525364] napi_consume_skb+0x57/0x160 [ 101.525367] igc_poll+0xb7/0xc80 [igc] [ 101.525376] ? sched_clock+0x5/0x10 [ 101.525381] ? sched_clock_cpu+0xe/0x100 [ 101.525385] net_rx_action+0x14c/0x410 [ 101.525388] __do_softirq+0xe9/0x2f4 [ 101.525391] __local_bh_enable_ip+0xe3/0x110 [ 101.525395] ? irq_finalize_oneshot.part.47+0xe0/0xe0 [ 101.525398] irq_forced_thread_fn+0x6a/0x80 [ 101.525401] irq_thread+0xe8/0x180 [ 101.525403] ? wake_threads_waitq+0x30/0x30 [ 101.525406] ? irq_thread_check_affinity+0xd0/0xd0 [ 101.525408] kthread+0x183/0x1a0 [ 101.525412] ? kthread_park+0x80/0x80 [ 101.525415] ret_from_fork+0x22/0x30
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | linux | 0 | 5.10.70-1 |
| Debian:12 | linux | 0 | 5.14.6-1 |
| Debian:13 | linux | 0 | 5.14.6-1 |
| 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 | 4.13.0-16.19 |
| Ubuntu:18.04:LTS | linux-aws | 0 | 4.15.0-1001.1 |
| 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 | 5.4.0-1057.60~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 0 | 4.15.0-1082.92 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-azure-5.4 | 0 | 5.4.0-1059.62~18.04.1 |
| 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 | 4.15.0-1071.81 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 0 | No fix |
| Ubuntu:18.04:LTS | linux-gcp-5.4 | 0 | 5.4.0-1053.57~18.04.1 |
| 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 | 5.4.0-87.98~18.04.1 |
| 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 | 4.15.0-1002.2 |
| Ubuntu:18.04:LTS | linux-oem | 0 | No fix |
| Ubuntu:18.04:LTS | linux-oracle | 0 | 4.15.0-1007.9 |
| 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 | 5.4.0-1055.59~18.04.1 |
| Ubuntu:18.04:LTS | linux-raspi-5.4 | 0 | 5.4.0-1044.48~18.04.1 |
| Ubuntu:20.04:LTS | linux | 0 | No fix |
| Ubuntu:20.04:LTS | linux | 0 | 5.4.0-88.99 |
| Ubuntu:20.04:LTS | linux-aws | 0 | No fix |
| Ubuntu:20.04:LTS | linux-aws | 0 | 5.4.0-1057.60 |
| 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 | 5.4.0-1059.62 |
| 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 | 5.4.0-1053.57 |
| 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 | 5.4.0-1024.25 |
| 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 | No fix |
| Ubuntu:20.04:LTS | linux-ibm | 0 | 5.4.0-1005.6 |
| 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 | 5.4.0-1047.49 |
| 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 | 5.4.0-1055.59 |
| 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 | 5.4.0-1044.48 |
| 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 |
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