CVE-2019-18806

unknown

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

—

Description

A memory leak in the ql_alloc_large_buffers() function in drivers/net/ethernet/qlogic/qla3xxx.c in the Linux kernel before 5.3.5 allows local users to cause a denial of service (memory consumption) by triggering pci_dma_mapping_error() failures, aka CID-1acb8f2a7a9f.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-18806

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`5.3.7-1`
debian	bullseye	fixed	`5.3.7-1`
debian	forky	fixed	`5.3.7-1`
debian	sid	fixed	`5.3.7-1`
debian	trixie	fixed	`5.3.7-1`

References

https://security-tracker.debian.org/tracker/CVE-2019-18806

Verify integrity in audit chain (admin only). AS-IS.