Bug 1568205 (CVE-2018-10124) - CVE-2018-10124 kernel: Undefined behaviour with INT_MIN argument in kernel/signal.c:kill_something_info() allows for denial of service
Summary: CVE-2018-10124 kernel: Undefined behaviour with INT_MIN argument in kernel/si...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-10124
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:
Blocks: 1568206
TreeView+ depends on / blocked
 
Reported: 2018-04-17 00:52 UTC by Sam Fowler
Modified: 2021-06-10 15:51 UTC (History)
45 users (show)

Fixed In Version: kernel 4.13-rc1
Doc Type: If docs needed, set a value
Doc Text:
The Linux kernel has an undefined behavior when an argument of INT_MIN is passed to the kernel/signal.c:kill_something_info() function. A local attacker may be able to exploit this to cause a denial of service.
Clone Of:
Environment:
Last Closed: 2018-04-23 11:15:09 UTC
Embargoed:

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Description Sam Fowler 2018-04-17 00:52:09 UTC 
The Linux kernel has an undefined behaviour when an argument of INT_MIN is passed to the kernel/signal.c:kill_something_info() function. A local attacker may be able to exploit this to cause a denial of service.

References:

https://marc.info/?l=linux-mm&m=149667084508525&w=2

https://news.ycombinator.com/item?id=2972021

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4ea77014af0d6205b05503d1c7aac6eace11d473
Comment 3 Vladis Dronov 2018-04-23 11:15:09 UTC 
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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