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rbd: validate IOContext before getting the list of trashed images

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`ensureImageCleanup()` can cause a panic when an image was deleted, but
the journal still contained a reference. By opening the IOContext before
using, an error may be returned instead of a panic when using a `nil` or
freed IOContext.

Signed-off-by: Niels de Vos <ndevos@ibm.com>
This commit is contained in:
Niels de Vos
2024-10-01 15:10:27 +02:00
committed by mergify[bot]
parent 9267210da4
commit d33e6b14fe
2 changed files with 8 additions and 8 deletions
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11
internal/rbd/controllerserver.go
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@ -881,9 +881,9 @@ func (cs *ControllerServer) checkErrAndUndoReserve(
}
if errors.Is(err, ErrImageNotFound) {
err = rbdVol.ensureImageCleanup(ctx)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
notFoundErr := rbdVol.ensureImageCleanup(ctx)
if notFoundErr != nil {
return nil, status.Errorf(codes.Internal, "failed to cleanup image %q: %v", rbdVol, notFoundErr)
}
} else {
// All errors other than ErrImageNotFound should return an error back to the caller
@ -1538,11 +1538,6 @@ func cleanUpImageAndSnapReservation(ctx context.Context, rbdSnap *rbdSnapshot, c
}
defer rbdVol.Destroy(ctx)
err = rbdVol.openIoctx()
if err != nil {
return status.Error(codes.Internal, err.Error())
}
// cleanup the image from trash if the error is image not found.
err = rbdVol.ensureImageCleanup(ctx)
if err != nil {