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MEDIUM

kernel: Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c allows for a DoS

Published Nov 18, 2019

Description

Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption) by triggering iwl_pcie_init_fw_sec() or dma_alloc_coherent() failures, aka CID-0f4f199443fa.

Affected products

Remediation

Red Hat statement

This issue is rated as having Low impact because of the preconditions needed to trigger the resource cleanup code path (ability to restrict access to dma coherent memory on device initialization).

Red Hat mitigation

In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module iwlwifi. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 .

Metrics

References (10)

Change history (0)

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Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 18, 2019
Updated Aug 5, 2024
Reserved Nov 18, 2019
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Low
Public date Nov 21, 2019