Description
A memory leak in the fsl_lpspi_probe() function in drivers/spi/spi-fsl-lpspi.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering pm_runtime_get_sync() failures, aka CID-057b8945f78f. NOTE: third parties dispute the relevance of this because an attacker cannot realistically control these failures at probe time
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 | 5.4.13-1 | — |
| Debian 13 | linux | 5.4.13-1 | — |
| Debian 12 | linux | 5.4.13-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +5 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-azure-5.3 | 5.3.0-1016.17~18.04.1 | USN-4300-1 |
| Ubuntu 18.04 LTS | linux-gcp-5.3 +1 | 5.3.0-1014.15~18.04.1 | USN-4300-1 |
| Ubuntu 18.04 LTS | linux-gcp-edge +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-hwe | 5.3.0-42.34~18.04.1 | USN-4300-1 |
| Ubuntu 18.04 LTS | linux-raspi2-5.3 | 5.3.0-1019.21~18.04.1 | USN-4300-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Advisories 2
- USN-4300-1 linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3, linux-azure, linux-azure-5.3 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- WID-SEC-2023-0198 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Dec 9, 2025
References
- https://github.com/torvalds/linux/commit/057b8945f78f76d0b04eeb5c27cd9225e5e7ad86
- https://bugzilla.suse.com/show_bug.cgi?id=1157300
- FEDORA-2019-021c968423 vendor-advisory
- FEDORA-2019-34a75d7e61 vendor-advisory
- USN-4300-1 vendor-advisory