Bug 1874535 (CVE-2020-29372) - CVE-2020-29372 kernel: IORING_OP_MADVISE races with coredumping
Summary: CVE-2020-29372 kernel: IORING_OP_MADVISE races with coredumping
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-29372
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:
: 1903283 (view as bug list)
Depends On: 1874559 1874560 1877755
Blocks: 1870590 1903285
TreeView+ depends on / blocked
 
Reported: 2020-09-01 14:49 UTC by Pedro Sampaio
Modified: 2021-02-16 19:23 UTC (History)
47 users (show)

Fixed In Version:
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Environment:
Last Closed: 2020-09-18 08:41:03 UTC
Embargoed:

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Description Pedro Sampaio 2020-09-01 14:49:21 UTC 
A flaw was found in Linux kernel. Race condition between IORING_OP_MADVISE and coredumping might end up in loss of availability.

References:

https://bugs.chromium.org/p/project-zero/issues/detail?id=2029
Comment 2 Petr Matousek 2020-09-10 11:30:50 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1877755]
Comment 3 Justin M. Forbes 2020-09-10 14:44:29 UTC 
This was fixed for Fedora with the 5.6.8 stable update.
Comment 4 Rohit Keshri 2020-10-06 08:44:17 UTC 
Statement:

There was no shipped kernel version were seen affected with this problem.
Comment 6 Petr Matousek 2020-12-10 12:44:35 UTC 
*** Bug 1903283 has been marked as a duplicate of this bug. ***
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