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CVE-2021-47617

Publication date 20 June 2024

Last updated 20 September 2024


Ubuntu priority

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

In the Linux kernel, the following vulnerability has been resolved: PCI: pciehp: Fix infinite loop in IRQ handler upon power fault The Power Fault Detected bit in the Slot Status register differs from all other hotplug events in that it is sticky: It can only be cleared after turning off slot power. Per PCIe r5.0, sec. 6.7.1.8: If a power controller detects a main power fault on the hot-plug slot, it must automatically set its internal main power fault latch [...]. The main power fault latch is cleared when software turns off power to the hot-plug slot. The stickiness used to cause interrupt storms and infinite loops which were fixed in 2009 by commits 5651c48cfafe ("PCI pciehp: fix power fault interrupt storm problem") and 99f0169c17f3 ("PCI: pciehp: enable software notification on empty slots"). Unfortunately in 2020 the infinite loop issue was inadvertently reintroduced by commit 8edf5332c393 ("PCI: pciehp: Fix MSI interrupt race"): The hardirq handler pciehp_isr() clears the PFD bit until pciehp's power_fault_detected flag is set. That happens in the IRQ thread pciehp_ist(), which never learns of the event because the hardirq handler is stuck in an infinite loop. Fix by setting the power_fault_detected flag already in the hardirq handler.

Status

Package Ubuntu Release Status
linux 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-109.123
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
linux-allwinner-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1072.77
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
linux-aws-5.0 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-aws-5.11 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-aws-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-aws-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-aws-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws-5.3 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-aws-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-aws-5.8 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-aws-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-aws-fips 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-aws-hwe 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial
Not affected
linux-azure 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1077.80
18.04 LTS bionic Ignored
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
linux-azure-4.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-azure-5.11 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-azure-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-azure-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-azure-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-5.3 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-azure-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-azure-5.8 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-azure-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-azure-edge 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-azure-fde 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Ignored
linux-azure-fde-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-azure-fde-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-fde-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-fips 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-bluefield 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 5.4.0-1035.38
linux-fips 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-gcp 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1072.77
18.04 LTS bionic Ignored
16.04 LTS xenial
Not affected
linux-gcp-4.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-gcp-5.11 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gcp-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gcp-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-gcp-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-gcp-5.3 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-gcp-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-gcp-5.8 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gcp-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-gcp-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-gcp-fips 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-gke 24.04 LTS noble
Not affected
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Ignored
linux-gke-4.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-gke-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gke-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-gkeop 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1039.40
linux-gkeop-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-gkeop-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-hwe 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial
Not affected
linux-hwe-5.11 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-hwe-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-hwe-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-hwe-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-hwe-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-hwe-5.8 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-hwe-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-hwe-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-hwe-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-edge 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Ignored
linux-ibm 24.04 LTS noble
Not affected
23.10 mantic Ignored
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1020.22
linux-ibm-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-ibm-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-intel 24.04 LTS noble
Not affected
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-intel-iot-realtime 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-iotg 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-intel-iotg-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 5.15.0-1008.11~20.04.1
linux-iot 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 5.4.0-1004.6
linux-kvm 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1062.65
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
linux-laptop 24.04 LTS noble Not in release
23.10 mantic
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-lowlatency 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-lowlatency-hwe-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-lowlatency-hwe-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-lowlatency-hwe-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-lowlatency-hwe-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-lowlatency-hwe-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-xenial 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
14.04 LTS trusty
Not affected
linux-nvidia 24.04 LTS noble
Not affected
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-nvidia-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-nvidia-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-nvidia-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-nvidia-lowlatency 24.04 LTS noble
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-oem-5.10 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-5.14 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-5.17 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-5.6 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-6.0 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-6.1 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-oem-6.8 24.04 LTS noble
Not affected
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-oracle 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1070.76
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
linux-oracle-5.0 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-oracle-5.11 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oracle-5.13 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oracle-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-oracle-5.3 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-oracle-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-oracle-5.8 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oracle-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-raspi 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Fixed 5.4.0-1059.67
linux-raspi-5.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-raspi-realtime 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-realtime 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv 24.04 LTS noble
Not affected
23.10 mantic
Not affected
22.04 LTS jammy Ignored
20.04 LTS focal Ignored
linux-riscv-5.11 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-riscv-5.15 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-riscv-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-riscv-5.8 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-riscv-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-riscv-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-starfive 24.04 LTS noble Not in release
23.10 mantic
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-starfive-5.19 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-starfive-6.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-starfive-6.5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-xilinx-zynqmp 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H