Bug 1000121 - 'sh' command before mount causes daemon to segfault
'sh' command before mount causes daemon to segfault
Product: Virtualization Tools
Classification: Community
Component: libguestfs (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Richard W.M. Jones
Depends On:
Blocks: 1000122 1000123
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Reported: 2013-08-22 14:32 EDT by Richard W.M. Jones
Modified: 2013-08-22 14:41 EDT (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 1000122 1000123 (view as bug list)
Last Closed: 2013-08-22 14:41:30 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Richard W.M. Jones 2013-08-22 14:32:52 EDT
Description of problem:

This bug was found by Olaf Hering.

Issuing the 'sh' command before mounting any filesystem will
cause the daemon to segfault.

Version-Release number of selected component (if applicable):

libguestfs 1.20.10
libguestfs 1.22.5
libguestfs 1.23.18

How reproducible:


Steps to Reproduce:

guestfish --ro -v -a /dev/null run : sh "foo" : ls /

Actual results:

You will see in the debug output that guestfsd has segfaulted.
The output will look similar to:

guestfsd: error: do_command: you must call 'mount' first to mount the root filesystem
*** Error in `guestfsd': free(): invalid pointer: 0x00007fffc1c8d560 ***
libguestfs: error: sh: do_command: you must call 'mount' first to mount the root filesystem
/init: line 167:   145 Aborted                 $vg guestfsd

(The precise message will differ between versions of libguestfs
but it should be obvious that guestfsd has segfaulted)

Expected results:

guestfsd should return an error and not segfault.

Additional info:

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