[Bug 1354114] Re: multipath segmentation Fault (libmultipath: update waiter handling)

[Rafael David Tinoco]

Attaching SRU proposal.

"""
Description: [PATCH] libmultipath: update waiter handling

The current 'waiter' structure accesses fields which belong
to the main 'mpp' structure, which has a totally different
lifetime. With this patch most of these dependencies are
removed and the 'waiter' structure can run independently
of the main 'mpp' structure, reducing the risk of
use-after-free faults.
"""

Judging by upstream fix:

# inaddy at precise.00067428:/bugs/00067428/sources/upstream$ git tag --contains 96f8146
0.5.0

All Ubuntu versions are affected:

# inaddy at precise.00067428:/bugs/00067428/sources/upstream$ rmadison multipath-tools
 multipath-tools | 0.4.8-14ubuntu4         | lucid           | source, amd64, armel, i386, ia64, powerpc, sparc
 multipath-tools | 0.4.8-14ubuntu4.10.04.2 | lucid-updates   | source, amd64, armel, i386, ia64, powerpc, sparc
 multipath-tools | 0.4.9-3ubuntu5          | precise         | source, amd64, armel, armhf, i386, powerpc
 multipath-tools | 0.4.9-3ubuntu5.1        | precise-updates | source, amd64, armel, armhf, i386, powerpc
 multipath-tools | 0.4.9-3ubuntu7          | trusty          | source, amd64, arm64, armhf, i386, powerpc, ppc64el
 multipath-tools | 0.4.9-3ubuntu8          | utopic          | source, amd64, arm64, armhf, i386, powerpc, ppc64el

** Summary changed:

- Precise multipath segmentation Fault 
+ multipath segmentation Fault (libmultipath: update waiter handling)

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https://bugs.launchpad.net/bugs/1354114

Title:
  multipath segmentation Fault (libmultipath: update waiter handling)

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