Bug 2320246 (CVE-2024-49851)

Summary:	CVE-2024-49851 kernel: tpm: Clean up TPM space after command failure
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2320375
Bug Blocks:

Description OSIDB Bzimport 2024-10-21 13:05:10 UTC

In the Linux kernel, the following vulnerability has been resolved:

tpm: Clean up TPM space after command failure

tpm_dev_transmit prepares the TPM space before attempting command
transmission. However if the command fails no rollback of this
preparation is done. This can result in transient handles being leaked
if the device is subsequently closed with no further commands performed.

Fix this by flushing the space in the event of command transmission
failure.

Comment 1 Robb Gatica 2024-10-21 15:38:03 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102152-CVE-2024-49851-edd9@gregkh/T

Comment 2 errata-xmlrpc 2025-05-13 08:29:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966