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CVE-2026-68319: Linux kernel update stops system freeze during PCI device reset
CVE-2026-68319 · published 2 months ago
Summary
A bug in certain Ubuntu Linux kernels could cause the computer to freeze when an internal hardware component was being reset at the same time it was being removed. The fix changes the reset process so it no longer gets stuck, preventing that freeze. Apply the latest kernel updates for the listed Ubuntu releases to stay protected.
What to do
- Update linux kernel to version 7.1.6.
- Update debian linux to version 6.12.101-1.
- Update debian linux to version 7.1.6-1.
- Update debian linux-6.12 to version 6.12.101-1~deb12u1.
- Update canonical linux to version 7.0.0-38.38.
- Update canonical linux-aws to version 7.0.0-1014.14.
- Update canonical linux-azure to version 7.0.0-1017.17.
- Update canonical linux-azure-fde to version 7.0.0-1016.16.
- Update canonical linux-gcp to version 7.0.0-1014.14.
- Update canonical linux-gke to version 7.0.0-1008.9.
- Update canonical linux-ibm to version 7.0.0-1015.15.
- Update canonical linux-oem-7.0 to version 7.0.0-1015.15.
- Update canonical linux-oracle to version 7.0.0-1013.13.
- Update canonical linux-realtime to version 7.0.0-38.38.1.
- Update canonical linux-aws-7.0 to version 7.0.0-1014.14~24.04.1.
- Update canonical linux-azure-7.0 to version 7.0.0-1017.17~24.04.1.
- Update canonical linux-azure-fde-7.0 to version 7.0.0-1016.16~24.04.1.
- Update canonical linux-gcp-7.0 to version 7.0.0-1014.14~24.04.1.
- Update canonical linux-hwe-7.0 to version 7.0.0-38.38~24.04.4.
- Update canonical linux-oracle-7.0 to version 7.0.0-1013.13~24.04.1.
- Update linux linux to version 90d9f3ef28843e6c35149324b8eefb427a7435c2 or later.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gkeop-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oem | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.3 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.10 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.14 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.6 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-raspi2 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-5.19 | All versions |
Showing 50 of 155. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:22.04:LTS | canonical | linux-azure-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-ibm-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-intel-iot-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-5.17 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.0 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.1 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.5 | All versions |
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-realtime-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-7.0 |
< 7.0.0-1014.14~24.04.1 Fix: upgrade to 7.0.0-1014.14~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-7.0 |
< 7.0.0-1017.17~24.04.1 Fix: upgrade to 7.0.0-1017.17~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-7.0 |
< 7.0.0-1016.16~24.04.1 Fix: upgrade to 7.0.0-1016.16~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-7.0 |
< 7.0.0-1014.14~24.04.1 Fix: upgrade to 7.0.0-1014.14~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-7.0 |
< 7.0.0-38.38~24.04.4 Fix: upgrade to 7.0.0-38.38~24.04.4
|
| Ubuntu:24.04:LTS | canonical | linux-ibm | All versions |
| Ubuntu:24.04:LTS | canonical | linux-lowlatency | All versions |
| Ubuntu:24.04:LTS | canonical | linux-lowlatency-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-7.0 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-lowlatency | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-tegra | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-7.0 |
< 7.0.0-1013.13~24.04.1 Fix: upgrade to 7.0.0-1013.13~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-raspi | All versions |
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-7.0 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-xilinx | All versions |
| Ubuntu:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield | All versions |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-gcp-fips | All versions |
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.14 | All versions |
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.17 | All versions |
| Ubuntu:26.04:LTS | canonical | linux-nvidia-bos | All versions |
| Ubuntu:26.04:LTS | canonical | linux-oem-7.0 |
< 7.0.0-1015.15 Fix: upgrade to 7.0.0-1015.15
|
| – | linux | linux |
< 90d9f3ef28843e6c35149324b8eefb427a7435c2 6.9 |
| Linux | linux | kernel |
>= 6.19.0, < 7.1.6 Fix: upgrade to 7.1.6
|
| Debian:13 | debian | linux |
< 6.12.101-1 Fix: upgrade to 6.12.101-1
|
| Debian:14 | debian | linux |
< 7.1.6-1 Fix: upgrade to 7.1.6-1
|
| Debian:12 | debian | linux-6.12 |
< 6.12.101-1~deb12u1 Fix: upgrade to 6.12.101-1~deb12u1
|
| Ubuntu:26.04:LTS | canonical | linux |
< 7.0.0-38.38 Fix: upgrade to 7.0.0-38.38
|
| Ubuntu:26.04:LTS | canonical | linux-aws |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| Ubuntu:26.04:LTS | canonical | linux-azure |
< 7.0.0-1017.17 Fix: upgrade to 7.0.0-1017.17
|
| Ubuntu:26.04:LTS | canonical | linux-azure-fde |
< 7.0.0-1016.16 Fix: upgrade to 7.0.0-1016.16
|
| Ubuntu:26.04:LTS | canonical | linux-gcp |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| Ubuntu:26.04:LTS | canonical | linux-gke |
< 7.0.0-1008.9 Fix: upgrade to 7.0.0-1008.9
|
| Ubuntu:26.04:LTS | canonical | linux-ibm |
< 7.0.0-1015.15 Fix: upgrade to 7.0.0-1015.15
|
| Ubuntu:26.04:LTS | canonical | linux-oracle |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-realtime |
< 7.0.0-38.38.1 Fix: upgrade to 7.0.0-38.38.1
|
Original advisory text
pds_core: fix deadlock between reset thread and remove
In the Linux kernel, the following vulnerability has been resolved: pds_core: fix deadlock between reset thread and remove pci_reset_function() acquires device_lock before performing the reset. pdsc_remove() is called by the PCI core with device_lock already held. If pdsc_pci_reset_thread() is running when pdsc_remove() is called, destroy_workqueue() will block waiting for the work to complete, while the work is blocked waiting for device_lock - deadlock. Use pci_try_reset_function() which uses pci_dev_trylock() internally. This acquires both the device lock and the PCI config access lock without blocking - if either lock is contended, it returns -EAGAIN immediately. This avoids the deadlock while also ensuring proper config space access serialization during the reset. The pci_dev_get/put calls are also removed as they were unnecessary - the driver-owned workqueue is destroyed in pdsc_remove(), guaranteeing the work completes before remove returns. The PCI core holds its reference to pci_dev throughout the entire unbind sequence.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-68319 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8888-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8889-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8887-1 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-68319 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-68319 Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://git.kernel.org/stable/c/90d9f3ef28843e6c35149324b8eefb427a7435c2 Third Party Advisory
- https://git.kernel.org/stable/c/54f905821f26d385fba407a920b51f0a752c76dc Third Party Advisory
- https://git.kernel.org/stable/c/19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a Third Party Advisory
- https://ubuntu.com/security/notices/USN-8888-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8887-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8887-3 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68319... Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2026-68319 Vendor Advisory
- https://git.kernel.org/stable/c/ab0eec0ff0a421737a37f510ceab5c6ea59cd05a Third Party Advisory
Timeline
Published10 Aug 2026
Updated4 Nov 2026
First seen10 Aug 2026
Sources
CVE-2026-68319 · NVD
CVE-2026-68319 · MITRE
UBUNTU-CVE-2026-68319 · OSV
CVE-2026-68319 · OSV
DEBIAN-CVE-2026-68319 · OSV
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