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Bug 1597747 - (CVE-2018-13053) CVE-2018-13053 kernel: Integer overflow in the alarm_timer_nsleep function
CVE-2018-13053 kernel: Integer overflow in the alarm_timer_nsleep function
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=none,public=20180627,reported=...
: Security
Depends On: 1597750 1597748
Blocks: 1597749
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Reported: 2018-07-03 10:42 EDT by Laura Pardo
Modified: 2018-08-02 21:20 EDT (History)
47 users (show)

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Doc Text:
A flaw was found in the alarm_timer_nsleep() function in kernel/time/alarmtimer.c in the Linux kernel. The ktime_add_safe() function is not used and an integer overflow can happen causing an alarm not to fire if using a large relative timeout.
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Last Closed: 2018-08-01 06:02:29 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Laura Pardo 2018-07-03 10:42:58 EDT 
A flaw was found in the alarm_timer_nsleep() function in kernel/time/alarmtimer.c in the Linux kernel. The ktime_add_safe() function is not used and an integer overflow can happen causing an alarm not to fire if using a large relative timeout.

References:

https://bugzilla.kernel.org/show_bug.cgi?id=200303

A suggested upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=5f936e19cc0ef97dbe3a56e9498922ad5ba1edef
Comment 1 Laura Pardo 2018-07-03 10:44:08 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1597748]
Comment 6 Vladis Dronov 2018-08-01 06:02:29 EDT 
Note:

This bug is present in certain Red Hat products, but the security impact is absent. Therefore, we do not consider this bug to be a security flaw.
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