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virISCSIGetSession: Don't leak memory

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This function runs an iscsi command and parses its output.
However, due to the nature of things, virISCSIExtractSession()
callback can be called multiple times. In each run it would
allocate new memory and overwrite the variable where we keep
pointer to it and thus leaking old allocations.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2017-04-05 10:48:10 +02:00
parent c455591f37
commit 9c037c6cae
1 changed files with 2 additions and 1 deletions
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3
src/util/viriscsi.c
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@ -52,7 +52,8 @@ virISCSIExtractSession(char **const groups,
{
struct virISCSISessionData *data = opaque;
if (STREQ(groups[1], data->devpath))
if (!data->session &&
STREQ(groups[1], data->devpath))
return VIR_STRDUP(data->session, groups[0]);
return 0;
}