* [Qemu-devel] [PATCH v2] migration: don't use uninitialized variables
@ 2013-07-29 23:39 Pawit Pornkitprasan
2013-07-30 12:34 ` Eric Blake
2013-07-30 13:31 ` Luiz Capitulino
0 siblings, 2 replies; 3+ messages in thread
From: Pawit Pornkitprasan @ 2013-07-29 23:39 UTC (permalink / raw)
To: qemu-devel
Cc: Luiz Capitulino, Pawit Pornkitprasan, Ryousei Takano,
Juan Quintela
The qmp_migrate method uses the 'blk' and 'inc' parameter without
checking if they're valid or not (they may be uninitialized if
command is received via QMP)
Signed-off-by: Pawit Pornkitprasan <p.pawit@gmail.com>
---
migration.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/migration.c b/migration.c
index 9fc7294..57a7998 100644
--- a/migration.c
+++ b/migration.c
@@ -399,8 +399,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
MigrationParams params;
const char *p;
- params.blk = blk;
- params.shared = inc;
+ params.blk = has_blk && blk;
+ params.shared = has_inc && inc;
if (s->state == MIG_STATE_ACTIVE || s->state == MIG_STATE_SETUP) {
error_set(errp, QERR_MIGRATION_ACTIVE);
--
1.7.3.4
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [Qemu-devel] [PATCH v2] migration: don't use uninitialized variables
2013-07-29 23:39 [Qemu-devel] [PATCH v2] migration: don't use uninitialized variables Pawit Pornkitprasan
@ 2013-07-30 12:34 ` Eric Blake
2013-07-30 13:31 ` Luiz Capitulino
1 sibling, 0 replies; 3+ messages in thread
From: Eric Blake @ 2013-07-30 12:34 UTC (permalink / raw)
To: Pawit Pornkitprasan
Cc: Juan Quintela, Ryousei Takano, qemu-devel, Luiz Capitulino
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On 07/29/2013 05:39 PM, Pawit Pornkitprasan wrote:
> The qmp_migrate method uses the 'blk' and 'inc' parameter without
> checking if they're valid or not (they may be uninitialized if
> command is received via QMP)
>
> Signed-off-by: Pawit Pornkitprasan <p.pawit@gmail.com>
> ---
> migration.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Eric Blake <eblake@redhat.com>
>
> diff --git a/migration.c b/migration.c
> index 9fc7294..57a7998 100644
> --- a/migration.c
> +++ b/migration.c
> @@ -399,8 +399,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
> MigrationParams params;
> const char *p;
>
> - params.blk = blk;
> - params.shared = inc;
> + params.blk = has_blk && blk;
> + params.shared = has_inc && inc;
>
> if (s->state == MIG_STATE_ACTIVE || s->state == MIG_STATE_SETUP) {
> error_set(errp, QERR_MIGRATION_ACTIVE);
>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [Qemu-devel] [PATCH v2] migration: don't use uninitialized variables
2013-07-29 23:39 [Qemu-devel] [PATCH v2] migration: don't use uninitialized variables Pawit Pornkitprasan
2013-07-30 12:34 ` Eric Blake
@ 2013-07-30 13:31 ` Luiz Capitulino
1 sibling, 0 replies; 3+ messages in thread
From: Luiz Capitulino @ 2013-07-30 13:31 UTC (permalink / raw)
To: Pawit Pornkitprasan; +Cc: Ryousei Takano, qemu-devel, Juan Quintela
On Tue, 30 Jul 2013 08:39:52 +0900
Pawit Pornkitprasan <p.pawit@gmail.com> wrote:
> The qmp_migrate method uses the 'blk' and 'inc' parameter without
> checking if they're valid or not (they may be uninitialized if
> command is received via QMP)
>
> Signed-off-by: Pawit Pornkitprasan <p.pawit@gmail.com>
Applied to the qmp branch, thanks.
> ---
> migration.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/migration.c b/migration.c
> index 9fc7294..57a7998 100644
> --- a/migration.c
> +++ b/migration.c
> @@ -399,8 +399,8 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
> MigrationParams params;
> const char *p;
>
> - params.blk = blk;
> - params.shared = inc;
> + params.blk = has_blk && blk;
> + params.shared = has_inc && inc;
>
> if (s->state == MIG_STATE_ACTIVE || s->state == MIG_STATE_SETUP) {
> error_set(errp, QERR_MIGRATION_ACTIVE);
^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-07-29 23:39 [Qemu-devel] [PATCH v2] migration: don't use uninitialized variables Pawit Pornkitprasan
2013-07-30 12:34 ` Eric Blake
2013-07-30 13:31 ` Luiz Capitulino
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