Bug 1652656 (CVE-2018-19407) - CVE-2018-19407 kernel: kvm: NULL pointer dereference in vcpu_scan_ioapic in arch/x86/kvm/x86.c
Summary: CVE-2018-19407 kernel: kvm: NULL pointer dereference in vcpu_scan_ioapic in a...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-19407
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1652658 1653835 1653836
Blocks: 1652659
TreeView+ depends on / blocked
 
Reported: 2018-11-22 14:41 UTC by Laura Pardo
Modified: 2021-02-16 22:44 UTC (History)
48 users (show)

Fixed In Version:
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Doc Text:
A NULL pointer dereference security flaw was found in the Linux kernel in the vcpu_scan_ioapic() function in arch/x86/kvm/x86.c. This allows local users with certain privileges to cause a denial of service via a crafted system call to the KVM subsystem.
Clone Of:
Environment:
Last Closed: 2019-07-12 13:06:15 UTC
Embargoed:

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Description Laura Pardo 2018-11-22 14:41:51 UTC 
A NULL pointer dereference security flaw was found in the Linux kernel in the vcpu_scan_ioapic() function in arch/x86/kvm/x86.c. This allows local users with certain privileges to cause a denial of service via a crafted system call to the KVM subsystem.

References:

https://marc.info/?l=linux-kernel&m=154270287006124&w=2

https://lkml.org/lkml/2018/11/20/580

Introduced by:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3d81bc7e96d6bca0b8f8b7d1bf6ea72caa3aac57

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e97f852fd4561e77721bb9a4e0ea9d98305b1e93
Comment 1 Laura Pardo 2018-11-22 14:42:43 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1652658]
Comment 5 Product Security DevOps Team 2019-07-12 13:06:15 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-19407
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