Description
In the Linux kernel, the following vulnerability has been resolved:
PCI: switchtec: Fix stdev_release() crash after surprise hot remove
A PCI device hot removal may occur while stdev->cdev is held open. The call
to stdev_release() then happens during close or exit, at a point way past
switchtec_pci_remove(). Otherwise the last ref would vanish with the
trailing put_device(), just before return.
At that later point in time, the devm cleanup has already removed the
stdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted
one. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause
a fatal page fault, and the subsequent dma_free_coherent(), if reached,
would pass a stale &stdev->pdev->dev pointer.
Fix by moving MRPC DMA shutdown into switchtec_pci_remove(), after
stdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent
future accidents.
Reproducible via the script at
https://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.0 | 5.4.269 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.7.7-1 | — |
| Debian 13 | linux | 6.7.7-1 | — |
| Debian 12 | linux | 6.1.82-1 | — |
| Debian 11 | linux | 5.10.216-1 | DSA-5681-1 |
| Debian 10 | linux-5.10 | 5.10.216-1~deb10u1 | DLA-3842-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1043.45 | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-106.116 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1061.67 | USN-6766-3 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1063.72 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-azure-6.5 | 6.5.0-1022.23~22.04.1 | USN-6819-1 |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1063.72.1 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1059.67 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-gcp-6.5 | 6.5.0-1022.24~22.04.1 | USN-6818-1 |
| Ubuntu 22.04 LTS | linux-gke +1 | 5.15.0-1058.63 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1044.51 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.5 | 6.5.0-41.41~22.04.2 | USN-6818-4 |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1054.57 | USN-6766-2, USN-6766-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1057.63 | USN-6795-1 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.5 | 6.5.0-41.41.1~22.04.1 | USN-6818-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1054.55 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-nvidia-6.5 | 6.5.0-1021.22 | USN-6818-3 |
| Ubuntu 22.04 LTS | linux-nvidia-tegra | 5.15.0-1026.26 | — |
| Ubuntu 22.04 LTS | linux-nvidia-tegra-igx | 5.15.0-1015.15 | — |
| Ubuntu 22.04 LTS | linux-oem-6.5 | 6.5.0-1024.25 | USN-6819-3 |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1059.65 | USN-6766-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.5 | 6.5.0-1024.24~22.04.1 | USN-6819-4 |
| Ubuntu 22.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv-6.5 | 6.5.0-40.40.1~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-starfive-6.5 | 6.5.0-1015.16~22.04.1 | USN-6819-1 |
| Ubuntu 22.04 LTS | linux-xilinx-zynqmp | 5.15.0-1030.34 | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-181.201 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1124.134 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1061.67~20.04.1 | USN-6766-3 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1129.136 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1063.72~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1063.72~20.04.1.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1084.91 | USN-6767-2 |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1128.137 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1059.67~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1091.95 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1044.51~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-106.116~20.04.1 | USN-6766-2, USN-6766-1 |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1071.76 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-ibm-5.15 | 5.15.0-1054.57~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1058.64~20.04.1 | USN-6828-1 |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1036.37 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1112.119 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-nvidia-tegra-5.15 | 5.15.0-1027.27~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1123.132 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1059.65~20.04.1 | USN-6766-1 |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1108.120 | USN-6767-1 |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1057.61~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1043.47 | USN-6767-1 |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2001.1 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-intel-iot-realtime | 5.15.0-1054.56 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1062.70 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-aws-fips | 5.15.0-1061.67+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-azure-fips | 5.15.0-1063.72+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-fips | 5.15.0-106.116+fips1 | — |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | 5.15.0-1059.67+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1124.134+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1129.136+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1098.108 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1128.137+fips1 | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 | 5.4.0-1124.134~18.04.1 | USN-6767-1 |
| Ubuntu Pro 18.04 LTS | linux-azure-5.4 | 5.4.0-1129.136~18.04.1 | USN-6767-1 |
| Ubuntu Pro 18.04 LTS | linux-gcp-5.4 | 5.4.0-1128.137~18.04.1 | USN-6767-1 |
| Ubuntu Pro 18.04 LTS | linux-hwe-5.4 | 5.4.0-181.201~18.04.1 | USN-6767-1 |
| Ubuntu Pro 18.04 LTS | linux-ibm-5.4 | 5.4.0-1071.76~18.04.1 | USN-6767-1 |
| Ubuntu Pro 18.04 LTS | linux-oracle-5.4 | 5.4.0-1123.132~18.04.1 | USN-6767-1 |
| Ubuntu Pro 18.04 LTS | linux-raspi-5.4 | 5.4.0-1108.120~18.04.1 | USN-6767-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.48.1 | SUSE-SU-2024:1490-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.59.1.150500.6.25.7 | SUSE-SU-2024:1480-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.59.1.150500.6.25.7 | SUSE-SU-2024:1480-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.47.1 | SUSE-SU-2024:1466-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_13 | 1-150500.11.3.1 | SUSE-SU-2024:1466-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_12 | 1-150500.11.7.1 | SUSE-SU-2024:1480-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.47.1 | SUSE-SU-2024:1466-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.59.1 | SUSE-SU-2024:1480-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.48.1 | SUSE-SU-2024:1490-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.59.1.150500.6.25.7 | SUSE-SU-2024:1480-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.47.1 | SUSE-SU-2024:1466-1 |
Advisories 21
- USN-6819-4 linux-oracle-6.5 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-6818-3 linux-nvidia-6.5 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-6818-1 linux, linux-gcp, linux-gcp-6.5, linux-lowlatency, linux-lowlatency-hwe-6.5, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-6819-3 linux-oem-6.5 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-6818-4 linux-hwe-6.5 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-6819-1 linux-azure, linux-azure-6.5, linux-starfive, linux-starfive-6.5 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-6766-1 linux, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6828-1 linux-intel-iotg-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6766-3 linux-aws, linux-aws-5.15 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6795-1 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6766-2 linux-hwe-5.15, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-6767-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- USN-6767-2 linux-bluefield vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- DSA-5681-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3842-1 linux-5.10 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ICSA-25-226-15 Siemens SINEC OS CISA ICS & IT advisories · Feb 25, 2026
- SSA-613116 SSA-613116: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.1 Siemens ProductCERT · Feb 24, 2026
- WID-SEC-2024-0654 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service und unspezifische Angriffe BSI CERT-Bund (WID) · Feb 16, 2026
- SUSE-SU-2024:1480-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1490-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1466-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355
- https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c
- https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8
- https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a
- https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3
- https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693
- https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66