Bug 1451386 - (CVE-2017-9059) CVE-2017-9059 kernel: Module reference leak due to improper shut down of callback channel on umount
CVE-2017-9059 kernel: Module reference leak due to improper shut down of call...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170426,repor...
: Security
Depends On: 1451996
Blocks:
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Reported: 2017-05-16 10:30 EDT by Adam Mariš
Modified: 2017-05-18 02:33 EDT (History)
32 users (show)

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Description Adam Mariš 2017-05-16 10:30:11 EDT
A leakage of module reference and kernel daemon in NFSv4 when NFSv4 mounts are made and then all outstanding NFSv4 mounts are removed. Local attackers with permission to mount NFS filesystems can potentially cause DoS by running the system out of resources.

Fixed by following patches:

https://www.spinics.net/lists/linux-nfs/msg63334.html

which were merged into mainline in following commit:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c70422f760c120480fee4de6c38804c72aa26bc1
Comment 1 Adam Mariš 2017-05-18 02:33:11 EDT
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1451996]

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