CVE-2019-9857

In the Linux kernel through 5.0.2, the function inotify_update_existing_watch() in fs/notify/inotify/inotify_user.c neglects to call fsnotify_put_mark() with IN_MASK_CREATE after fsnotify_find_mark(), which will cause a memory leak (aka refcount leak). Finally, this will cause a denial of service.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
VendorProductVersion
linuxlinux_kernel
𝑥
≤ 5.0.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
stretch
not-affected
jessie
not-affected
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-aws
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-aws-hwe
cosmic
dne
bionic
dne
xenial
not-affected
trusty
dne
linux-azure
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-azure-edge
cosmic
dne
bionic
not-affected
xenial
not-affected
trusty
dne
linux-euclid
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-flo
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-gcp
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-gcp-edge
cosmic
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gke
cosmic
dne
bionic
not-affected
xenial
ignored
trusty
dne
linux-goldfish
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-grouper
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe
cosmic
dne
bionic
not-affected
xenial
not-affected
trusty
dne
linux-hwe-edge
cosmic
dne
bionic
not-affected
xenial
not-affected
trusty
dne
linux-kvm
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-lts-trusty
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-utopic
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-vivid
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-wily
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
cosmic
dne
bionic
dne
xenial
dne
trusty
not-affected
linux-maguro
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-mako
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-manta
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
cosmic
not-affected
bionic
not-affected
xenial
ignored
trusty
dne
linux-oracle
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-raspi2
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-snapdragon
cosmic
dne
bionic
not-affected
xenial
not-affected
trusty
dne
Common Weakness Enumeration
References
http://www.securityfocus.com/bid/107527
https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git/commit/?h=fsnotify&id=62c9d2674b31d4c8a674bee86b7edc6da2803aea
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXLZ2V2ES37A3J7DMK4MZYIWV2LEZFLM/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PPH3B7FJOMWD5JWUPZKB6T44KNT4PX2L/
https://patchwork.kernel.org/patch/10836283/
https://security.netapp.com/advisory/ntap-20190404-0002/
http://www.securityfocus.com/bid/107527
https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git/commit/?h=fsnotify&id=62c9d2674b31d4c8a674bee86b7edc6da2803aea
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXLZ2V2ES37A3J7DMK4MZYIWV2LEZFLM/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PPH3B7FJOMWD5JWUPZKB6T44KNT4PX2L/
https://patchwork.kernel.org/patch/10836283/
https://security.netapp.com/advisory/ntap-20190404-0002/