Bug 1187489 – VUL-0: CVE-2021-32078: kernel-source,kernel-source-rt,kernel-source-azure: kernel: out-of-bounds read in arch/arm/mach-footbridge/personal-pci.c due to improper input validation

Bug 1187489 - (CVE-2021-32078) VUL-0: CVE-2021-32078: kernel-source,kernel-source-rt,kernel-source-azure: kernel: out-of-bounds read in arch/arm/mach-footbridge/personal-pci.c due to improper input validation

(CVE-2021-32078)
Summary:	VUL-0: CVE-2021-32078: kernel-source,kernel-source-rt,kernel-source-azure: ke...

Status:	RESOLVED WONTFIX

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Normal
Target Milestone:	---
Assigned To:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/302472/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-32078:3.3:(AV:...
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Reported:	2021-06-18 10:36 UTC by Gianluca Gabrielli
Modified:	2021-06-18 15:37 UTC (History)
CC List:	6 users (show)

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Found By:	Security Response Team
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Description Gianluca Gabrielli 2021-06-18 10:36:48 UTC

An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to element -2 of an array.

Reference:
https://kirtikumarar.com/CVE-2021-32078.txt

Upstream patch:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=298a58e165e447ccfaae35fe9f651f9d7e15166f

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1973436
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-32078
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32078
https://github.com/torvalds/linux/commit/298a58e165e447ccfaae35fe9f651f9d7e15166f
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=298a58e165e447ccfaae35fe9f651f9d7e15166f
https://kirtikumarar.com/CVE-2021-32078.txt

Comment 1 Gianluca Gabrielli 2021-06-18 10:37:22 UTC

All our kernel packages are affected.

Comment 3 Takashi Iwai 2021-06-18 14:11:30 UTC

AFAIK, this config has been never enabled on all SUSE kernels including TW, so we should be unaffected.

Comment 4 Takashi Iwai 2021-06-18 14:12:00 UTC

Reassigned back to security team.