CVE-2015-7550

Bug #1530400 reported by Steve Beattie on 2015-12-31
256
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-armadaxp (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-ec2 (Ubuntu)
Undecided
Unassigned
Precise
Undecided
Unassigned
Trusty
Undecided
Unassigned
Vivid
Undecided
Unassigned
Wily
Undecided
Unassigned
Xenial
Undecided
Unassigned
Yakkety
Undecided
Unassigned
linux-flo (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-fsl-imx51 (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-goldfish (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-backport-maverick (Ubuntu)
Undecided
Unassigned
Precise
Undecided
Unassigned
Trusty
Undecided
Unassigned
Vivid
Undecided
Unassigned
Wily
Undecided
Unassigned
Xenial
Undecided
Unassigned
Yakkety
Undecided
Unassigned
linux-lts-backport-natty (Ubuntu)
Undecided
Unassigned
Precise
Undecided
Unassigned
Trusty
Undecided
Unassigned
Vivid
Undecided
Unassigned
Wily
Undecided
Unassigned
Xenial
Undecided
Unassigned
Yakkety
Undecided
Unassigned
linux-lts-quantal (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-raring (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-saucy (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-trusty (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-utopic (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-vivid (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-wily (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-lts-xenial (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Undecided
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-mako (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-manta (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-mvl-dove (Ubuntu)
Undecided
Unassigned
Precise
Undecided
Unassigned
Trusty
Undecided
Unassigned
Vivid
Undecided
Unassigned
Wily
Undecided
Unassigned
Xenial
Undecided
Unassigned
Yakkety
Undecided
Unassigned
linux-raspi2 (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-snapdragon (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Undecided
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned
linux-ti-omap4 (Ubuntu)
Medium
Unassigned
Precise
Medium
Unassigned
Trusty
Medium
Unassigned
Vivid
Medium
Unassigned
Wily
Medium
Unassigned
Xenial
Medium
Unassigned
Yakkety
Medium
Unassigned

Bug Description

The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.

Break-Fix: - b4a1b4f5047e4f54e194681125c74c0aa64d637d

CVE References

Steve Beattie (sbeattie) wrote :

CVE-2015-7550

tags: added: kernel-cve-tracking-bug
information type: Public → Public Security
Changed in linux-lts-trusty (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-trusty (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-trusty (Ubuntu Trusty):
status: New → Invalid
Changed in linux-lts-trusty (Ubuntu Vivid):
status: New → Invalid
Changed in linux-lts-wily (Ubuntu Precise):
status: New → Invalid
Changed in linux-lts-wily (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-wily (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-wily (Ubuntu Vivid):
status: New → Invalid
Changed in linux-lts-quantal (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-quantal (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-quantal (Ubuntu Trusty):
status: New → Invalid
Changed in linux-lts-quantal (Ubuntu Vivid):
status: New → Invalid
Changed in linux-ti-omap4 (Ubuntu Wily):
status: New → Invalid
Changed in linux-ti-omap4 (Ubuntu Xenial):
status: New → Invalid
Changed in linux-ti-omap4 (Ubuntu Trusty):
status: New → Invalid
Changed in linux-ti-omap4 (Ubuntu Vivid):
status: New → Invalid
Changed in linux-lts-raring (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-raring (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-raring (Ubuntu Trusty):
status: New → Invalid
Changed in linux-lts-raring (Ubuntu Vivid):
status: New → Invalid
Changed in linux-armadaxp (Ubuntu Wily):
status: New → Invalid
Changed in linux-armadaxp (Ubuntu Xenial):
status: New → Invalid
Changed in linux-armadaxp (Ubuntu Trusty):
status: New → Invalid
Changed in linux-armadaxp (Ubuntu Vivid):
status: New → Invalid
Changed in linux-lts-saucy (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-saucy (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-saucy (Ubuntu Trusty):
status: New → Invalid
Changed in linux-lts-saucy (Ubuntu Vivid):
status: New → Invalid
Changed in linux-manta (Ubuntu Precise):
status: New → Invalid
Changed in linux-lts-vivid (Ubuntu Precise):
status: New → Invalid
Changed in linux-lts-vivid (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-vivid (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-vivid (Ubuntu Vivid):
status: New → Invalid
Changed in linux-raspi2 (Ubuntu Precise):
status: New → Invalid
Changed in linux-raspi2 (Ubuntu Trusty):
status: New → Invalid
Changed in linux-raspi2 (Ubuntu Vivid):
status: New → Invalid
Changed in linux-mako (Ubuntu Precise):
status: New → Invalid
Changed in linux-fsl-imx51 (Ubuntu Precise):
status: New → Invalid
Changed in linux-fsl-imx51 (Ubuntu Wily):
status: New → Invalid
Changed in linux-fsl-imx51 (Ubuntu Xenial):
status: New → Invalid
Changed in linux-fsl-imx51 (Ubuntu Trusty):
status: New → Invalid
Changed in linux-fsl-imx51 (Ubuntu Vivid):
status: New → Invalid
Changed in linux-lts-utopic (Ubuntu Precise):
status: New → Invalid
Changed in linux-lts-utopic (Ubuntu Wily):
status: New → Invalid
Changed in linux-lts-utopic (Ubuntu Xenial):
status: New → Invalid
Changed in linux-lts-utopic (Ubuntu Vivid):
status: New → Invalid
Changed in linux-goldfish (Ubuntu Precise):
status: New → Invalid
Changed in linux-flo (Ubuntu Precise):
status: New → Invalid
description: updated
Changed in linux-lts-trusty (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-lts-trusty (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-trusty (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-trusty (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-lts-trusty (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-lts-wily (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-lts-wily (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-wily (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-wily (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-lts-wily (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-lts-quantal (Ubuntu Precise):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-lts-quantal (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-quantal (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-quantal (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-lts-quantal (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-ti-omap4 (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-ti-omap4 (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-ti-omap4 (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-ti-omap4 (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-ti-omap4 (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-lts-raring (Ubuntu Precise):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-lts-raring (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-raring (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-raring (Ubuntu Trusty):
importance: Undecided → Medium
Steve Beattie (sbeattie) on 2016-01-01
Changed in linux-lts-raring (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-armadaxp (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-armadaxp (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-armadaxp (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-armadaxp (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-armadaxp (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-lts-saucy (Ubuntu Precise):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-lts-saucy (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-saucy (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-saucy (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-lts-saucy (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-manta (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-manta (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-manta (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-manta (Ubuntu Trusty):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-manta (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-lts-vivid (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-lts-vivid (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-vivid (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-vivid (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-lts-vivid (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-raspi2 (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-raspi2 (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-raspi2 (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-raspi2 (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-raspi2 (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-mako (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-mako (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-mako (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-mako (Ubuntu Trusty):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-mako (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-fsl-imx51 (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-fsl-imx51 (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-fsl-imx51 (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-fsl-imx51 (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-fsl-imx51 (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-lts-utopic (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-lts-utopic (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-lts-utopic (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-lts-utopic (Ubuntu Trusty):
importance: Undecided → Medium
Changed in linux-lts-utopic (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-goldfish (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-goldfish (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-goldfish (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-goldfish (Ubuntu Trusty):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-goldfish (Ubuntu Vivid):
importance: Undecided → Medium
Changed in linux-flo (Ubuntu Precise):
importance: Undecided → Medium
Changed in linux-flo (Ubuntu Wily):
importance: Undecided → Medium
Changed in linux-flo (Ubuntu Xenial):
importance: Undecided → Medium
Changed in linux-flo (Ubuntu Trusty):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-flo (Ubuntu Vivid):
importance: Undecided → Medium
Steve Beattie (sbeattie) on 2016-01-12
Changed in linux (Ubuntu Wily):
status: New → Fix Committed
Changed in linux (Ubuntu Xenial):
status: New → Fix Committed
Changed in linux-lts-utopic (Ubuntu Trusty):
status: New → Fix Committed
Steve Beattie (sbeattie) on 2016-01-15
Changed in linux-lts-wily (Ubuntu Trusty):
status: New → Fix Committed
Changed in linux-raspi2 (Ubuntu Wily):
status: New → Fix Committed
Steve Beattie (sbeattie) on 2016-01-29
Changed in linux (Ubuntu Vivid):
status: New → Fix Committed
Changed in linux (Ubuntu Trusty):
status: New → Fix Committed
Steve Beattie (sbeattie) on 2016-02-02
Changed in linux-lts-wily (Ubuntu Trusty):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu Wily):
status: Fix Committed → Fix Released
Changed in linux-raspi2 (Ubuntu Wily):
status: Fix Committed → Fix Released
Changed in linux-lts-utopic (Ubuntu Trusty):
status: Fix Committed → Fix Released
Steve Beattie (sbeattie) on 2016-02-06
Changed in linux-lts-trusty (Ubuntu Precise):
status: New → Fix Committed
Changed in linux (Ubuntu Precise):
status: New → Fix Committed
Changed in linux-ti-omap4 (Ubuntu Precise):
status: New → Fix Committed
Changed in linux-lts-vivid (Ubuntu Trusty):
status: New → Fix Committed
Steve Beattie (sbeattie) on 2016-02-10
Changed in linux-raspi2 (Ubuntu Xenial):
status: New → Fix Committed
description: updated
Steve Beattie (sbeattie) on 2016-02-11
Changed in linux-lts-xenial (Ubuntu Precise):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-lts-xenial (Ubuntu Wily):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-lts-xenial (Ubuntu Xenial):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-lts-xenial (Ubuntu Trusty):
status: New → Fix Committed
importance: Undecided → Medium
Steve Beattie (sbeattie) on 2016-02-22
Changed in linux-lts-trusty (Ubuntu Precise):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu Precise):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu Trusty):
status: Fix Committed → Fix Released
Changed in linux-ti-omap4 (Ubuntu Precise):
status: Fix Committed → Fix Released
Changed in linux-lts-vivid (Ubuntu Trusty):
status: Fix Committed → Fix Released
Steve Beattie (sbeattie) on 2016-02-24
Changed in linux-armadaxp (Ubuntu Precise):
status: New → Fix Released
Steve Beattie (sbeattie) on 2016-04-19
Changed in linux-manta (Ubuntu Xenial):
status: New → Invalid
Steve Beattie (sbeattie) on 2016-05-05
Changed in linux-snapdragon (Ubuntu Precise):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-snapdragon (Ubuntu Wily):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-snapdragon (Ubuntu Xenial):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-snapdragon (Ubuntu Yakkety):
status: New → Invalid
importance: Undecided → Medium
Changed in linux-snapdragon (Ubuntu Trusty):
status: New → Invalid
importance: Undecided → Medium

This bug was nominated against a series that is no longer supported, ie yakkety. The bug task representing the yakkety nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu Yakkety):
status: Fix Committed → Won't Fix
Andy Whitcroft (apw) wrote :

This bug was nominated against a series that is no longer supported, ie vivid. The bug task representing the vivid nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu Vivid):
status: Fix Committed → Won't Fix
Andy Whitcroft (apw) on 2017-10-17
Changed in linux-flo (Ubuntu Vivid):
status: New → Won't Fix
Andy Whitcroft (apw) on 2017-10-17
Changed in linux-mako (Ubuntu Vivid):
status: New → Won't Fix
Po-Hsu Lin (cypressyew) on 2019-10-03
Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
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