CVE-2019-19064

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-11-18 · updated 2026-06-17
Weakness: CWE-401

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

Affected products

Fedoraproject Fedora: 30, 31
Linux kernel: from 5.2 before 5.4.13 — fixed in 5.4.13

How to fix

Upgrade to a fixed version: Linux kernel 5.4.13. Check the vendor advisory for mitigations.

References

https://bugzilla.suse.com/show_bug.cgi?id=1157300
https://github.com/torvalds/linux/commit/057b8945f78f76d0b04eeb5c27cd9225e5e7ad86
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
https://usn.ubuntu.com/4300-1/
https://bugzilla.suse.com/show_bug.cgi?id=1157300
https://github.com/torvalds/linux/commit/057b8945f78f76d0b04eeb5c27cd9225e5e7ad86
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
https://usn.ubuntu.com/4300-1/

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